Showing posts with label prefrontal cortex. Show all posts
Showing posts with label prefrontal cortex. Show all posts

Monday, December 4, 2023

11 Years Old - DeconstructingTime Blog

This Blog
DeconstructingTime
Is 11 Years Old

This post is an overview
of what was accomplished
during those 11 years


Eleven years ago, in December 2012, I began this blog to investigate and examine the human experience and understanding of time.

9,000-Year-Old Neolithic Statue
It Utilized A "Woven Reed Core Wrapped Tightly With Twine" 
"Human statue from Ain Ghazal city, in the outskirts of Amman, Jordan. Pre-pottery Neolithic period B, 8th millennium BCE."
The latest dating indicates that this figure was made 3000 years before the beginning of the Sumerian civilization, This means that basket weaving technology with reeds was quite advanced by the Neolithic Pre-Pottery B time period. (Ben-Nissan, Advances in Calcium Phosphate Biomaterials)



THE BASIC IDEA

The basic idea for this blog is quite simple. It is now clear that our sense of time evolved from the immediacy of animal existence to our modern sense of linear time with a past, present, future, and duration. But it is my contention that this may have taken millions of years to evolve and that it went through a number of stages.

In addition, I think that early and late hominins, i.e., pre-Homo sapiens, were much smarter and cleverer than previously thought. And further, that early Homo sapiens were much smarter than previously thought. For example, I think that many Neolithic cultures were technologically advanced.

One of the principal barriers to understanding earlier people has been our modern point of view. We need to imagine the past from the point of view of a past culture and free ourselves from modern assumptions.

WHY IS THIS IMPORTANT?

Our sense of time is a key reason that we became the dominant species on the planet with our ability to plan and design. So we need to understand it. Furthermore, our understanding of time is critical as we deal with global warming. For example, if it happens quickly we are in deep trouble; if it happens slowly we can probably plan and adjust.

SOME STATISTICS

I have written over 120 fully illustrated blog-articles which are often 3000 - 7000 words long with footnotes, links to supporting documents, and notes about the research. I spent at least 40 hours writing each blog. In total all of these blogs are equivalent to more than 1000 pages.

Currently, this site averages 3700 views a month and on the three academic sites, where these articles are reprinted, another 1500 views and downloads per month are indicated. On the academic site, Academia.edu, my work is usually in the top 1% of papers viewed. On that same site, I have more than 1080 followers. Altogether articles from this blog and those that have been reprinted on the academic sites have been viewed and downloaded more than 300,000 times.


WHAT WAS DISCUSSED AND DISCOVERED

It has been a wild ride. Never did I imagine that I would end up writing articles about the Lower, Middle, and Upper Paleolithic, the Neolithic, Mesopotamia and Egypt, the geocentric theory of the Earth, the brain, the evolution of language, basket weaving, and right angle construction. 


Baskets/containers made by pre-Neolithic nomadic hunter-gatherers
found in the dry 'Bat Cave' in Spain. These baskets have been newly dated and found to be 2,000 years older than previously thought. They were made by hunter-gatherers and not made by Neolithic people.
https://commons.wikimedia.org/wiki/File:Cestillos_de_esparto_(29319999262).jpg

NEW DISCOVERIES
To my surprise and delight recent discoveries of artifacts, new dating, and microscopic direct evidence have supported many of my ideas in this blog. 

To summarize the new findings: direct evidence of rope made by Neanderthals was found using microscopic techniques, new dating showed that sophisticated baskets were made by hunter-gatherers which for a hundred years had been dismissed as impossible, and half a million years ago pre-Homo sapiens hominins made a sophisticated wooden structure with a notched right angle part which again was thought to be impossible. All three of these discoveries were consistent with my ideas and predictions of early hominin technology. All three indicate significant cognitive abilities which required planning and a sense of time.


MRI of the human brain. (commons.wikimedia.org)

THE HUMAN BRAIN
I was one of the first people to write about the prefrontal cortex (PFC) and how it may be a key part of our brain that gives us a sense of time, an actual sense like smell or taste. The PFC appears, for example, to allow basic thinking about time and the future such as considering several chess moves. 




DID EARLY HUMANS LEARN COMPLEX WEAVING FROM WEAVERBIRDS?
I believe I was the first researcher to suggest the following. I was able to show that early hominins, more than a million years ago, lived in close association with weaverbirds who made complex intricate tightly woven nests that looked like containers. I can say this because fossil skeletons of weaverbirds were found in the same layer as Oldowan stone tools at Olduvai Gorge. Also in my research, I found that virtually all anthropologists believe early hominins lived around baobab trees, ate their fruit, and often found honey there. And weaverbirds also made their nests in baobab trees.
Early hominins would have been able to observe these birds making nests which often took more than a day and the birds used a variety of knots and weaving techniques. Abandoned nests fell to the ground where hominins could have examined them closely. So I believe it is possible that early hominins learned complex basket weaving from these birds. 



"Structural unit formed by two overlapping logs 
The underlying log passes through a central notch cut into the upper log ...and extends into the section. Plan view of the unit (left) and during excavation (right). The numbers refer to the distance in centimetres."

RIGHT-ANGLE STRUCTURES
I wrote two articles about the importance of right-angle construction and how it was a key element in structural design from small baskets to large structures. My hypothesis is that this structural idea was already part of early hominin thinking and engineering about 300,000 years ago. 

As I said earlier, a structure made half a million years ago by pre-Homo sapiens was recently identified. It had clearly used a notched right-angle piece of wood as part of its design. This finding has added support to my hypothesis.



"Basket, Apache people, Arizona, ca. 1900,
coiled willow and devil's claw - Chazen Museum of Art."
From the Apache nomadic hunter-gatherers tradition.
<https://commons.wikimedia.org/wiki/File:Basket,_Apache_people,_Arizona,_c._1900,_coiled_wilow_and_devil%27s_claw_-_Chazen_Museum_of_Art_-_DSC01849.JPG>

BASKET WEAVING (WOVEN-FIBER TECHNOLOGY) DURING THE PALEOLITHIC ERA
In September 2019, I wrote the following article: 


I made the point that considerable indirect evidence suggests that basket weaving and related weaving existed in the Paleolithic era, especially the Upper Paleolithic, and this technology was capable of making a wide variety of items from small baskets to houses and boats. While indirect evidence of impressions in clay proved that basket weaving existed in the Upper Paleolithic era, there was no direct evidence. 

But now in a report dated November 2023, new radiocarbon dating of complete baskets found in a cave in Spain has shown that hunter-gatherers had mastered this technology contrary to assumptions that had prevailed for over 100 years which maintained this was impossible. 

And more, the implications of this discovery are large. If these societies could make these well-woven baskets, they probably could have made many other things with woven-fiber technology such as small boats, temporary houses, mats, and a variety of food-related items such as plates, bowls, water-carrying baskets both large and small and even baskets for cooking (really). What I just mentioned are items that hunter-gatherer Native American Indians were able to make with weaving technology.

This means the Upper Paleolithic cultures might have been much more advanced and developed than previously thought. And this is what my article suggested.



Diagram of the Newgrange passage and solstice light from the side. (Irish Art History Section, Professional Development Service for Teachers, P.D.S.T., Ireland)

A PRECISE NEOLITHIC INSTRUMENT AT NEWGRANGE
I wrote a detailed study of the Newgrange passage tomb in Ireland. It is now proven that, around the time of the winter solstice, light comes directly down the passageway and only around that time. But I have suggested it could be taken one step further. I believe the configuration could determine the actual day of the solstice in real-time, an idea that others have suggested but which I have covered in much more detail. Furthermore, if I am right, the Greeks and Romans, 2500 years later, could not determine the day of the solstice in real-time according to my research. So this would mean that the science of the Neolithic culture at Newgrange was more advanced than Greek and Roman science in some respects.

The very slight change in the sun's position at the time of the winter solstice combined with atmospheric conditions has made it virtually impossible to pinpoint the actual day of the solstice in real-time. However, I believe that the Neolithic scientists at Newgrange found a way to do just that. I have been a professional photographer for 30 years which often involved lighting. My art photographs, which are different from my commercial work, are often pictures of landscapes with low-angled lighting or abstracts with unusual lighting. This means I understand how light works and how a slight change in an angle from a light source can make a difference. For example, the shadows can be different. 

So I am reasonably sure that a slight change in the sun's angle around the time of the winter solstice could be clear when viewed in the passageway at Newgrange. This is because in many ways the passageway at Newgrange behaves like a scientific instrument that magnifies the sun's rays. I believe this magnification reveals the difference between the day of the solstice and the days before and after. I feel this hypothesis could be and should be scientifically tested which I have advocated. With the new science of photogrammetry which can create a precise interactive digital model, this should not be hard to do. The difficult part for a simulation would be to make sure the sun's rays were entering the passageway at just the right angles.



This grass house (mudhif) was built entirely out of reeds, including the rope and mats. Many archaeologists believe this basic design was older than the first Mesopotamian cities and these types of buildings housed many people after the Sumerian civilizations had risen.
"Iraq's Marsh Arabs use reeds to build vaulted reception halls called mudhifs, such as this one at Albu Hamrah near the ancient Sumerian archaeological site of Lagash."

EARLY CIVILIZATIONS AND THE REED INDUSTRY
I offer substantial evidence (such as cuneiform receipts and about a hundred weaving-related words) that Mesopotamia had a large critical reed industry which has not been identified by other researchers. Plentiful reeds were used extensively throughout these societies. Sophisticated reed construction was used to make a variety of large and small boats, large and small buildings, a wide variety of baskets for domestic or commercial use, and all-purpose mats.

I did the research to establish this because I think it is possible that the grid structure of reed baskets was a model for Mesopotamian astronomy which divided the night sky into vertical and horizontal sections. Babylonian scientists created our modern system of hours, minutes, and seconds which we still use today. We even use the same math of sixty minutes to an hour and 60 seconds to a minute as the Mesopotamians. 



Gears in a pocket watch that use Ptolemy's geometry.

THE GEOCENTRIC SOLAR SYSTEM AND OUR MODERN MACHINE AGE
My last possible "proof" brings my ideas in this blog up to today. It involves the discredited Earth-centered astronomy, known as geocentric astronomy, of the Greek astronomer Ptolemy. His system was used to create a yearly calendar, but over time it became clear that the calendar was off. This led to the more accurate sun-centered, heliocentric system, that we use today. Once this older system had been discarded, many knowledgeable people, such as my college history teacher, made fun of its epicycles or wheels within wheels, considering them absurd and cumbersome. 

But they had missed a basic point. While the calendar was off, it was only off by one day every hundred years! This meant that the basic geometry and math were quite accurate. They were so accurate that starting around 1400 CE, many medieval clocks were made based on this system and its "absurd" gearing -- and they worked very well. Some are still working today after about 600 years.
 
Clocks based on the Ptolemaic geometry were constructed up to the time of the Industrial Revolution which used the same geocentric gearing for the invention of numerous machines. Today this engineering of gears and gearing is very much a part of the modern world. 

But don't take my word for it. As one of the acknowledged experts on the subject of clocks said, Clocks were the "key machine of the modern industrial age."
Strandh, Sigvard (1979). A History of the Machine.

When the industrial age began expert clockmakers were in high demand. This is because many machines were like a clock that must operate in a specific order and then repeat.


OTHER IMPORTANT IDEAS

I believe the immediacy of time that animals experience changed slowly during the Paleolithic era. It developed into an understanding that some things such as processes required a sense of linear time. A process must be planned and executed in a certain order, for example, and the end result must be imagined at the start of the process. Next, in the Neolithic era, I believe that time was seen as cyclical with repeating yearly seasons. However, within the cyclical seasons, long-term yearly linear planning could be implemented. So preparing ground for planting, planting, harvesting, and storing grain would have required a linear way of thinking but within a world that was believed to be cyclical. Finally, linear time became the principal concept that we use today. Time is seen as a commodity that can be managed and planned. "Time is money," as the saying goes.



A Piraha group in the Amazon.

LANGUAGE
A hunter-gatherer tribe in the Amazon, the Piraha, uses a language that speaks of time in immediate terms. This could be an example of an earlier culture which works with time as being immediate.

BASKETRY AND WOVEN-FIBER TECHNOLOGY
I believe that basket weaving or woven-fiber technology was a plant material technology that existed along with stone tool-making for perhaps millions of years. Furthermore, I think that baskets and other woven-fiber items should be considered tools, although, for some odd reason, they have not been given the status of 'tools' in the past. I also think that weaving with its regular grid-like patterns may have become one of the models for time. 


MODERN ASSUMPTIONS, BIASES, AND MISCONCEPTIONS

In my research, it became clear that one of the biggest obstacles to discovering the truth about early technologies and early societies was our modern point of view. In particular, I found that the art of basket weaving had been subjected to a range of incorrect assumptions that prevented it from being given the status it deserved. Here are some of those mistakes.



"The [basket that this] grandmother is weaving about herself
is to be used as a store for grains and vegetables."
This storage basket is very similar to an early Neolithic basket that was just found.
This is a colorized B&W photo from 
American Indians: first families of the Southwest by Huckel.
"Relatively few tribes of American Indians understood pottery, except in the crudest form. As for basketry, it may be said that every Indian from the land of the Esquimaux down through Mexico was a basket weaver." Quote from the above.

6 MISCONCEPTIONS ABOUT THE IMPORTANCE OF BASKETRY
#1. A basket is a tool! For some odd reason, basketry has not been valued for its functions and usefulness and has rarely been given the status of a tool. Yet even simple container baskets fit the definition of a tool and other more complex products made with a woven-fiber technology do as well.

#2. It was assumed for over 100 years that basket weaving must have begun in the Neolithic era because it was labor-intensive. It was assumed that Paleolithic people did not have the time or the skill to make baskets while Neolithic people did. However recent studies showed that hunter-gatherers have more free time and horticultural farmers less free time.

#3. It was assumed that pottery was an advance over basket weaving and that cultures that used pottery were more advanced than those that made baskets. But basketry was quite sophisticated when it became fully developed and it was more appropriate for nomadic societies because it was light, strong, and could be made from local plants in just about any environment. In other words, it worked better for nomadic people and may have been a sophisticated technology.

#4. The huge variety of items that could be made with woven-fiber technology was not recognized. I put together a list of things that could be made, from sandals to huge buildings and sea-going reed ships, to show the versatility of this technology. It included clothing, roofs for houses, fences, heavy-duty baskets for dredging canals, and even levy construction. I believe this versatility made it a key technology for Neolithic societies and the later Egyptian and Mesopotamian civilizations as well. I believe these civilizations could not have functioned without it.

#5. In the 1800s and most of the 1900s, the work of women was not valued. So when anthropologists looked at the basketry of Native American Indians in North America it was often seen as "women's work." Many of the best baskets and woven-fiber items WERE made by women but their skill was highly valued by Indian men who understood the complexity of the craft. These baskets were so well made that many of them lasted for generations and were passed down as family treasures.

#6. We all know the joke about the incredibly easy college course, "Underwater Basket Weaving." This joke reflects the lack of respect that basketry has received. As a result, I have suggested that the technology be renamed "woven-fiber technology" since basket weaving "can't get no respect!"

ONE MORE EXAMPLE OF A MODERN BIAS -- NEWGRANGE
Archaeologists knew about the Newgrange passage tomb for over 250 years but assumed that it was just another crude stone Neolithic building. Because it looked crude to their eyes they were incapable of understanding that it was built with great precision not only in its construction but in its orientation as it was exactly placed to capture the sunrise around the time of the winter solstice -- a fact which today is no longer in dispute. 


CONCLUSION

I hope I have added to the conversation about the importance of time and added to an understanding of how we humans developed a sense of time and how we perceive and use time. I feel that this is the most important thing I could do: to contribute to the conversation and to ask good questions.

At the same time, I did try to make a complete narrative from the earliest beginnings of human-like creatures right up to today. I have written at least one article about each important time period. So I have made an attempt to tell a full story which you may or may not agree with but at least it is an attempt at such a story.

And in the future, I will try to find evidence or ideas that will fill gaps in my narrative.

Most of the full articles are available as PDFs
which you can download or read online.
the most recent are here:




Sunday, October 9, 2022

HUT THEORY: Human Understanding of Time

Rick Doble's Theory About 
The Human Understanding of Time (HUT)

AN OVERVIEW
A complete theory
From about 3 million years ago to the present day
From 10 years of this blog about the human experience of time

Lucy (Australopithecus) 3.2 mya, related to and possibly one of our early ancestors. Image compiled by Peter Schmid courtesy of Lee R. Berger, University of the Witwatersrand.
The Human Understanding of Time (HUT)

HUT is a comprehensive theory about how the human understanding of time came about and how it developed.

The reason we are the dominant species on this planet is due, in large part, to our ability to plan, organize, manage, and predict -- which all require a sophisticated understanding of time.

Homo sapiens is the only animal on the planet that conceives and works with time in a linear fashion, time with a past, present, and future plus duration. This did not happen quickly but, I believe, took millions of years, beginning with early hominins.

In past articles over the last ten years, I have gone into detail about different aspects ranging from millions of years ago, to the emerging civilizations of Mesopotamia and Egypt, and the consumer culture and photography of today. In this article I want to put the pieces together, to look at a grand view, to look at the forest, and not concentrate on the trees. In brief, I want to paint a BIG PICTURE.

The HUT theory involves many aspects: 
* the addition of the pre-frontal cortex to the hominin brain, a part of the brain that allowed hominins to consider possible future actions and eventually to conceive of linear time with a past, present, and future 
* the development of the brain with the increased ability to remember and to imagine
* the early and continuing development of plant and fiber technology, a technology that all agree must have existed but until now has been ignored due to a lack of direct evidence; new indirect and some direct evidence points to woven-fiber technology (basket making) as an important early technology
* the survival benefits of woven-fiber technology (basket making) which allowed hominins to gather and carry much more food and materials 
* the possible influence of woven-fiber technology on evolution itself due to increased food supplies and better access to important materials 
* concepts of time related to basket making which took planning and then time-consuming work to make
* the development of culture based on concepts of time
* the development of languages all of which include time references
* the development of time concepts such as: coordination, management, planning, design, imagination, memory, prediction, and the use and development of processes

ABOUT DOCUMENTATION
Since this article is an overview I will not provide a list of sources for my statements, but if you look at my timeline article (next link) and the specific articles referenced, you will find extensive documentation.

Please see my previous article,
 A Historic Timeline About Human Concepts of Time,
 for documentation about statements made in this article.

EARLIER INCORRECT ASSUMPTIONS

A major reason that this type of theory did not exist until now is because many assumptions were incorrect. In particular, the old assumed timeline of human development that existed for about 150 years had many flaws, flaws in part due to an inability to properly date archaeological finds. Now, however, this has been largely solved due to advanced dating techniques. So, for example, modern dating was able to confirm that the ceiling cave paintings at the Cave of Altamira in Spain were about 14,000 years old and not fraudulent as originally claimed by experts.

But the timeline was also incorrect because of many unfounded assumptions.

To perhaps over-generalize, in the past, it was assumed that early hominins were not very intelligent or sophisticated. It was only with the much later rise of civilization that humans finally emerged from primitive and brutish conditions. The entire prehistoric past (meaning before written records) and stone age technology, including advanced Neolithic technology, was seen as crude and unrefined at best.

The thinking now is almost the opposite. It is my opinion, and that of many others, that even the earliest hominins with small brains such as Homo habilis or Homo erectus accomplished remarkable things and that they were very smart with the brain power they did have. For example, they invented technologies that had never existed before, such as the making of stone tools, which they continued to develop and refine.

But even when considering more recent time periods such as the Neolithic era, the bias of modern thinking is evident. For example, using written history as a key dividing point in human history is and was a mistake. Before written history, i.e., in prehistoric times, extremely sophisticated cultures and societies were established. They were so sophisticated that some of the Neolithic processes, for example, are still used today or until recently.

The Neolithic time period is a good example of how modern thinking stood as a barrier to a clear understanding of Neolithic accomplishments. It was assumed that since it used stone age technology, it was primitive. Not so. In fact, well-designed stone age tools, which were extremely efficient, were used for thousands of years even after the rise of the great civilizations and the invention of bronze, because bronze was rare and expensive. 

This axe looks crude but it was state of the art for thousands of years. It not only could quickly clear a forested site, it and similar stone tools could cut and shape wood better than any tools before it. It led to a new 'wood' technology that had not been possible before in Europe.
"A Neolithic stone axe with a wooden handle. Found at Ehenside Tarn, now in the British Museum."

Incorrect assumptions are a barrier to new discoveries. They prevent research into ideas that disagree with these assumptions, prevent students from exploring new areas, and choke off funding.

I say all of this because many incorrect assumptions need to be put to rest so that the new insights of a comprehensive theory such as HUT can be considered.

I will summarize past incorrect assumptions as follows:
ASSUMPTION: It was assumed that basketry was developed during the Neolithic era and not before. It was also assumed that the hunter-gatherers of the Upper Paleolithic did not have the time to make baskets or woven-fiber items nor the sophisticated intelligence and skills to make them.
FACT: Recent studies showed that hunter-gatherers had more time than horticultural farmers. And Native American Indian mobile hunter-gathers (a lifestyle viewed as similar to those in the European Upper Paleolithic) were expert basket makers who preferred light durable fiber containers over heavy and breakable pottery.
ASSUMPTION: If a culture does not use an advanced technology that is available to it, it is primitive.
FACT: Humans use a technology because they need it. For example, the assumption that Native American Indians who did not use pottery but preferred basketry were less sophisticated was incorrect. Mobile hunter-gatherers needed light strong items as they moved. While not well known, they had developed large and small baskets for carrying water and baskets for cooking with hot rocks. Plus they could make just about any additional woven-fiber item from local vegetation as they moved around.
ASSUMPTION: Technological advances happen in a fairly predictable progression.
FACT: Many things that were assumed to be part of the Neolithic have been found in the Paleolithic such as a highly sophisticated ceramic figurine. It can no longer be assumed that technology progressed in an orderly fashion.

It was always assumed that ceramics began in the Neolithic era along with pottery as it required a hot and controlled fire. But this figurine was made about 20,000 years earlier in the Upper Paleolithic era.
Venus of Dolní Vestonice
"Venus figurine, a ceramic statuette of a nude female figure dated to 29,000–25,000 BCE [or early Upper Paleolithic]. This figurine...is among the oldest known ceramic articles in the world."

ASSUMPTION: Basket making was women's work and therefore not important.
FACT: Yes, in many cases baskets were made by women, which should have nothing to do with the value of their work. The Native American Indians revered the highly sophisticated processes and creations of their women.
ASSUMPTION: It was assumed that basketry was, in any case, not important and certainly not as important as stone tools.
FACT: Basket making and woven-fiber technology (which includes rope) were critical. The tools made with these technologies could be made anywhere in the world with local materials and used for a wide variety of items from boats to large burden baskets for gathering food or firewood. This technology was also used to make hats, shoes, and even suspension rope bridges. These were versatile tools even though they have not been thought of as tools by researchers until recently.
ASSUMPTION: The birth of civilization, meaning Mesopotamia and Egypt, marks the start of man's highest achievements.
FACT: Most of the processes and technologies that made the great civilizations possible had been highly developed in the Neolithic time period. For example, The Bronze Age, seen as a clear break from the 'primitive' stone age, depended on Neolithic inventions. Neolithic pottery kilns were able to achieve high temperatures which had not been possible before. And this ability led directly to the even higher temperatures necessary for metallurgy. They also built a variety of small and large reed boats which became important for trade. Furthermore, the Neolithic radical change in lifestyle from the previous hunter-gatherer existence depended on agriculture, a selection of basic crops (founder crops), a method for storing and preserving the crops over months or years, sedentary villages, textiles, and pottery. All of the above formed the foundation for the civilizations of Mesopotamia and Egypt. 
ASSUMPTION: Writing is the dividing technology that separates advanced societies from earlier crude cultures.
FACT: Neolithic societies did not require writing as the Neolithic cities were not big enough to need it. However, the much larger later civilizations did need it.
ASSUMPTION: The scientific achievements of civilizations show a clear superiority over Neolithic and earlier cultures.
FACT: Some Neolithic science was as advanced or even more advanced than those of later civilizations. For example, the passageway at Newgrange, which was aligned with the winter solstice sun and used to determine the day of the solstice, was more precise than methods used by the Romans or the Greeks.

Newgrange
LEFT: Close-up of the gate to the passageway (bottom) and the roof-box (top).
RIGHT: Close-up of the roof-box and the funnel stones. The solstice light comes through this specially designed roof-box and then into the passageway. The light does not come through the passageway doorway.
"For 17 minutes, therefore, at sunrise on the shortest day of the year, direct sunlight can enter Newgrange, not through the doorway, but through the specially contrived slit that lies under the roof-box at the outer end of the passage roof."
(O'Kelly et al., Newgrange: Archaeology, Art and Legend.)

While this looks crude to our modern eyes, the alignment and placement of the stones were exact and could determine the day of the solstice in real time, which was (and still is) very hard to determine through direct observation.
Coffey, George. Drawings of Newgrange from the late 1800s. Published in: The Dolmens of Ireland,, by William Copeland Borlase. Published by the University of Michigan Library (January 1, 1897).

While we have no written records, the many Neolithic monuments that are astronomically aligned indicate the ability of Neolithic science to mark and measure time and also the importance of time.

Writing about Neolithic monuments and megaliths, Michael Gantley of National Geographic wrote,
"The incorporation of astronomical alignments suggests that Neolithic ceremonies were closely bound with the changing seasons. These cycles were critical to agrarian communities..."
(Gantley, Europe’s Mighty Megaliths "Rock" the Winter Solstice)
_______________________________

A NEW STORY OF 
HUMAN, CULTURAL, & TECHNOLOGICAL EVOLUTION

Once these incorrect assumptions are pushed aside, a new story of human, technological, and cultural evolution becomes possible.

In particular, the human understanding of time is critical. It took a long time to develop and once developed it went through many versions. Yet this idea has not taken center stage until now. Without an understanding of time, none of the great achievements of humankind would have been possible. 

Why a study of the human understanding of time has not been explored is a mystery. I believe it was again due to another incorrect assumption: many believe that time is what it is and our perception of it has always been the same. Before I started writing my blog, I could only find a few discussions of different possible conceptions of time as humankind developed.


THE PREFRONTAL CORTEX (PFC)

Millions of years ago (no one is sure when) some primates acquired a unique part of the brain, the prefrontal cortex which, among many other things, allowed some creatures to consider different future outcomes and then choose which action to take. It is very likely that over time, and with increased memory and imagination due to a much larger brain, hominins were able to conceive of time in a linear fashion, with a past, present, and future, but this did not happen quickly. It took millions of years. 

Early developing technologies such as basket making and the demands of woven-fiber technology may have affected how this part of the brain evolved. While other primate brains have the prefrontal cortex, the one that Homo sapiens have is much larger and unique to our species. Studies of the PFC are ongoing as modern science is still learning about this part of the brain.


THE DEVELOPMENT OF A SENSE OF TIME 
IN THE PALEOLITHIC ERA

"It must have required enormous effort for man to overcome his natural tendency to live like the animals in a continual present."
"Man must have been conscious of memories and purposes long before he made any explicit distinction between past, present, and future."
Whitrow, Gerald. Time in History: Views of Time from Prehistory to the Present Day. Oxford, UK, Oxford University Press. 1988, pages 21-22.

As members of the animal kingdom, I believe hominins emerged from a sense of time that was immediate to a very different sense of time that could be imagined and worked with.

To begin my search for evidence, I focused on basketry because I felt that basket making and woven-fiber items were closely related to concepts of time and would have been familiar to everyone in a tribe. I also knew that containers and weaving were found in all cultures around the world, so there was a good chance that basketry was an ancient technology.

A basket must be imagined first and then created in a grid pattern which takes time and also represents time. So a basket becomes, in a way, a symbol for time itself.

In my work, I pushed back the beginning of woven-fiber technology and basket making to about 2 million years ago when it can be proved with fossil evidence that early hominins lived in close association with weaverbirds who made sophisticated basket-like nests. Oldowan tools from early hominins were found in the same layers as skeletons of weaverbirds at Olduvai Gorge in Africa. So it is likely that early humans learned a type of basket making from these birds. For example, random weave baskets made from flexible green vines are easy to make and can be quite strong once the vines have dried out. 

LEFT: Weaverbird nests are well-designed and strong. Abandoned ones fell down from Baobab tree limbs (trees where hominins often camped) which early hominins could have collected. "Weaverbird (Southern Masked Weaver) nest of dry grass, near Pretoria, South Africa"
RIGHT: A random weave basket made from vines by Nan Bowles. It was constructed with green flexible vines that later dried to make a light, stiff, strong basket. (Basket/Photo by Nan Bowles)

I was then able to show indirectly that baskets and woven-fiber items probably continued to be developed by Homo erectus about 300,000 years ago with a much more advanced right-angle design. 

I believe that after more than a million years, random weave technology began to develop into a technology that used a regular design and right angle or opposing strand construction. This was a crucial breakthrough. This technology allowed the creation of an endless number of woven-fiber items plus it was scalable, meaning that large products were possible such as reed boats. It was with this basic model that shoes, hats, containers, huts, and boats in a wide variety of configurations could be constructed.

At some point, probably hundreds of thousands of years ago, a system of vertical spokes and horizontal weaver strands (or a system of opposing strands) developed. Eventually, this system was capable of creating a wide variety of durable items from sandals to large houses using local materials. Some such baskets lasted generations and were passed down in a family.

RIGHT: The stiff vertical spokes and the right-angled horizontal flexible weaver strands are clearly visible in this basket that has almost been completed. 

This idea was based on the discovery of an A-frame-like building at Terra Amata in France constructed by Homo erectus, which included many of the elements required for right-angle basketry and woven-fiber technology, such as the use of even regular opposing poles. 

A museum recreation of a building (Terra Amata, Nice, France) probably made by Homo erectus and is considered the oldest known human building.

Then I was able to find new direct evidence. Microscopic evidence of basic cordage (rope) made by Neanderthals was discovered dating to the Middle Paleolithic. And impressions in clay of sophisticated basket and textile weaving were dated to the Upper Paleolithic. Plus Native American Indian hunter-gathers (a lifestyle viewed as similar to those in the European Upper Paleolithic) were shown to be expert basket makers.

These last discoveries of direct evidence revealed technologies that were already highly developed. Therefore experts believe that the early stages of these must have begun much sooner. 

TOP: This realistic painting of a bison is about 14,000 years old and was painted by a Paleolithic 'caveman' in the Cave of Altamira in Spain. This work was done from memory with a multi-colored spray-paint technique in the darkness of the cave. This demonstrates the remarkable skills, powers of observation, and memory humans had in Paleolithic times.(NOTE: This photo was taken of an accurate reproduction of this bison painted on the ceiling at Altamira as visitors are no longer allowed in the cave.)
BOTTOM: A photograph of a European bison today (a somewhat different bison species), shows the accuracy of the cave painting on the top.


PROCESSES

It seems clear that early on a sense of time began to develop since it can be shown that processes were invented to make stone tools and that these processes continued to be developed and refined over millions of years.

Definition: Process (Oxford Language):
A series of actions or steps taken in order to achieve a particular end.

Technology involves processes that require steps that must be done in a certain chronological order and require a duration of time to achieve a specific future result. Processes involve the past, present, and future plus duration -- the essential elements of linear time. 

Moreover, processes almost inevitably become more complicated. For example, with "the major [stone tool] industries [that] include (in chronological order) the Oldowan, Acheulean, Mousterian, Aurignacian, Solutrean, and Magdalenian industries" (Britannica) each stone age industry was more complex than the one before it. For example, 18 different types of stone implements have been discovered from the Acheulean industry (starting with Homo erectus 1.75 mya) such as chisels, awls and anvils but by the late Upper Paleolithic (ending about 10 kya) the tool kit was up to 80 different implements. (Britannica)

As the complexity increased, so did an understanding of time because more planning and preparation were involved, more stone shaping was required, teaching the young these skills took time, and imagining the final result from the initial raw stone required a linear sense of progression. In addition processes such as making baskets required a sense of math, geometry, and a concept of the basket to be made. Teaching this did not initially require language as it could be learned by imitation. In one study I referenced, a woman was shown how to make baskets by imitation without a word being spoken. A native girl in a contemporary tribe sat next to her and led her through the steps involved.

LEFT: Paleolithic 'flake tools'.
RICHT: Neolithic polished tools.
Page 280, Volume 15 of the German illustrated encyclopedia Meyers Konversationslexikon, 4th edition (1885-1890).

So I believe a complex unspoken sense of time did develop before language began.


SURVIVAL AND EVOLUTION

Basketry and other woven-fiber items would have allowed hominins to gather more food and materials. For example, big "backpack" type baskets known as "burden baskets" would have allowed hominins to gather large quantities of goods from distant locations. This would have increased their chances of survival. And this ability to provide more food would have affected their evolution. 

Known as burden baskets, these baskets were used worldwide in just about every society even today, and were widely used by hunter-gatherer Native American Indians on a daily basis, and probably during the Neolithic time period for harvesting crops.
LEFT: Carrying Basket, Paiute Indians, Utah.
(Aboriginal American Basketry, 1904, Fig. 185, p. 494)
RIGHT: "Apache Indian woman carrying a "Kathak" on her back, Arizona, ca.1880."
(University of Southern California, ca.1880, Apache Indian woman carrying a "Kathak")


LANGUAGE

For words are to thought
what tools are to work;
the product depends largely on the growth of the tools.
 
Will Durant, History of Civilization: Volume 1, Chapter 5, The Mental Elements of Civilization.

Time reference is a universal property of language...
Jacqueline Lecarme, Ph.D., Linguistics

No one knows exactly when, but possibly at some point in the Middle Paleolithic or early Upper Paleolithic era, an initial full language began to emerge although there may have been a rudimentary proto-language long before that. I believe that language then became the main tool for working with time. 

With early languages, it is my contention that the sense of time was immediate. Time was understood in terms of a couple of days, no more. There is evidence for this with the hunter-gatherer Piraha tribe in the Amazon who think this way but also have an extremely complex language that expresses their time concepts. 

A Piraha community. The Pirahas are hunter-gatherers who live in the Amazon.


NEOLITHIC LINEAR TIME WITHIN CYCLICAL TIME

Eventually in the Neolithic era there began to be an understanding of long-term linear time. This sense of time made it possible to plan, harvest and store crops over a year's time. But again it is my contention, that the Neolithic people conceived of time as primarily cyclical year to year, season to season, and day to day but within that cycle linear time could exist. 

When the great civilizations of Mesopotamia and Egypt emerged they used a range of woven-fiber items that employed technology passed down from Neolithic societies who had continued to develop and expand the woven-fiber technology. 

This woven bowl is an example of the fine workmanship
that had been achieved in the Neolithic era.
LEFT: Bowl  
RIGHT: Detail of bowl
Baskets, basket bowls, sandals, textiles, and mats from
the Neolithic Era (5200-4600 BCE or 7200-6600 BP)
were found in Los Murcielagos Cave, Albunol, Province Of Granada, Andalusia, Spain.

Sophisticated reed housing began in the Neolithic as well.
"A mudhif, a traditional Marsh Arab guesthouse made entirely out of reeds. The Marsh Arabs live a lifestyle that dates back 5,000 years." Quoted from: https://commons.wikimedia.org/wiki/File:Iraqi_mudhif_interior.jpg
Mudhif Reception Hall

Known as mudhifs, these buildings were (and still are) made entirely from reeds. Buildings can be quite large and are used for ceremonial purposes. Small ones, called rabas, are used as family homes. Weaving technology once mastered can be scaled up to make quite large structures such as these traditional mudhif reed buildings that have been made for thousands of years by the Mudan people in the marshes of southern Iraq.

LEFT: Local contractors begin the job of building a mudhif. "The reeds are gathered from marshlands near the Euphrates River." 
MIDDLE: "Local contractors construct the main reed arches of a marsh Arab mudhif."
RIGHT: Almost completed, the mudhif exterior.

It is very likely that many if not most houses in Mesopotamian cities, at least in the beginning, were these mudhif/raba-type grass huts since high-quality reeds grew wild in the marshes. These were quite nice comfortable homes. Homes made out of bricks came later and were expensive, so their use may have been limited.


ANCIENT CULTURES

Basketry was a key element of Mesopotamian societies and a central part of their mythology, so much so that in one myth an important god declared, "The pickax and the basket build cities." Baskets sealed with bitumen were used to hold water to irrigate the fields and other baskets were used to manage and dredge the canals. There were over 100 words altogether in Mesopotamia that dealt with basket weaving, baskets, woven mats, reed craftsmanship, reed constructions, and weaving with palm leaves.

Cuneiform shipping receipts in Mesopotamia show that there was a key reed industry since high-quality reeds grew naturally in the marshes. Writing had also begun. Scribes wrote with reed styluses to record sales on clay tablets which were then filed in reed baskets. Reeds were used to build large and small boats and a variety of containers. So woven-fiber technology which had been developing for perhaps several million years was a critical part of early civilizations.

This reed ship in Mesopotamia illustrates the sophistication of the reed industry. This painting depicts a large ship made of reeds in early Mesopotamia. The existence of similar large reed boats has been well documented. <LINK>

Both Egypt and the Mesopotamian cities adopted the Neolithic sense of linear time within cyclical time. And it was this sense of time, which was so different from hunter-gathers just ten or twenty thousand years earlier, that gave them the power to manage their societies based on extensive agriculture. 

While often overlooked, both the Mesopotamians and the Egyptians depended on huge numbers of woven-fiber sacks for holding and transporting grain
along with baskets carried by pack animals. 
LEFT: Picture from the Sumerian Standard of Ur.
of a person carrying a sack, circa 2600 BCE.
RIGHT: Picture of an Egyptian carrying a sack
from Tombe d'Oumsou, circa 1450 BCE.

The oldest Egyptian mathematical document, known as "The Moscow Mathematical Papyrus" which is dated to the 13th dynasty (approx. 1800 BCE), contains a geometry problem (Problem 10) relating to basketry, which shows the importance of basket making to this early civilization. 
This picture is of Problem 14 in the Moscow Papyrus

Egyptian paintings show a wide range of baskets that were used in agriculture along with sacks to carry and store grain. In addition, woven papyrus boats and sandals were common.

Baskets were critical tools for Egyptian agriculture.
BOTTOM:

While astronomy is the study of the sun, moon, stars, and planets, it is also a study of time. At night, for example, the sky moves every second and starts at a different point from night to night. Over a year the star patterns repeat and indicate a precise way of determining the time of year.

"Map of the night sky: star positions
from the Bright Stars Catalog, 5th Edition. Rasterized." 2006.
This modern map of the stars visible in the Northern Hemisphere
is based on the Babylonian model. The white curved line is the zodiac. 
Notice the faint horizontal and vertical grid lines and the 360-degree indicators.

The later Babylonian culture (Neo-Babylonian) conceived of the sky as a circle and then divided the sky into 12 sections, 30 degrees apart making a yearly total of 360 degrees (still used today for degrees in a circle) that repeated yearly. Each 30-degree section was a constellation in the Zodiac which was a concept they invented. They also mapped out the ecliptic, the path that the sun, moon, and planets all followed. Each degree was subdivided into 60 arcminutes and each minute into 60 arcseconds (the same numbers we use today). Finally, the sky in a circle was divided into a grid pattern of declination and right-ascension which can be thought of today as latitude and longitude on Earth projected into the sky. And with these two coordinates, any star or planet could be pinpointed. The Babylonian map of the sky with this grid right-angle pattern looked very much like an upside-down basket.  While I cannot yet confirm that this grid pattern was derived from basketry, it is an intriguing idea that should be researched.


CLASSICAL, MEDIEVAL, & MODERN TIME

It was assumed until about 400 years ago that the sun went around the Earth. Around 150 CE, Claudius Ptolemy devised an accurate system that was only off by one day every hundred years based on this assumption. His system required epicycles or circles within circles. For about 1500 years his science was the accepted astronomy. His system also included a grid and coordinates for star and planet positions, which he adopted from the Babylonians.

"A simple illustration showing the basic elements of Ptolemaic astronomy.
It shows a planet rotating on an epicycle which is itself rotating around
a deferent inside a crystalline sphere." Quoted from:

While the geocentric system of Ptolemy is no longer believed and has been replaced with the heliocentric system (the Earth revolves around the sun), his accurate system of wheels within wheels (epicycles) created a sophisticated way of gearing which led directly to the Industrial Revolution and machines.

Gears based on Ptolemy's epicycles in a pocket watch.


"The Prague astronomical clock [above] was installed in 1410...and is the oldest functioning Astronomical clock in the world." Photo and quote from:
Medieval clocks were built using the epicycle gearing of Ptolemy's geocentric astronomy. Ptolemy's astronomy and geography also used a vertical and horizontal 'grid' system probably inherited from the Babylonians. Ptolemy's gearing geometry would lead directly to the construction of machines and the Industrial Revolution. 


CONTEMPORARY TIME

Clocks were the "key machine of the modern industrial age."
Strandh, Sigvard, A History of the Machine.

In a sense, all machines are clocks. A geared clock is simply a machine whose product is the movement of clock hands on a clock face. A car motor is a machine that produces speed. Both have to proceed in a specific orderly manner to function properly. A misfiring car engine is a good example of a timing problem because the engine is firing when the pistons are not in the right position.

Today virtually all computers have a clock at their center that handles data according to its clock speed. For example, a CPU with 3700 megahertz clock speed (MHz) handles three billion seven hundred million cycles per second. So the clock continues to be at the heart of our technology.

For thousands of years time continued to be thought of as cyclical but eventually with the Scientific Revolution around 1700 and the work of Isaac Newton, cosmological time was seen as linear.

In the modern world, we think of time as primarily linear although our days and weeks, and seasons are cyclical. Time is seen as a commodity so we spend and save time. We are constantly aware of time because clocks and schedules are ever-present. We are to some extent imprisoned by time as we can rarely step outside the grid. 

It is clear from my research that much of what we think of as time has been molded by the culture. Time is not something that can be seen or felt in the physical world. Much of it exists in our collective imagination that we have been conditioned to accept. This is as true today as it was for Homo sapiens in the Paleolithic. Today, for example, Aboriginal Australians have a very different concept of time and have expressed great difficulty when dealing with Western linear time.

See my article about time being the most important subject
in schools in industrialized societies.
School's Most Important Subject: Time


FUTURE TIME

But thinking about time does not stop with a study of history. Understanding time today is just as important. 

Global warming will require a response that takes into account the speed of sea level rise, for example, and how quickly to respond to it. But the effects of the Industrial Revolution (which came about partly due to the Scientific Revolution) are not just limited to global warming. These effects will require an understanding of their possible damage and also may require a timely response. For example, 380 million tons of plastic are entering the oceans every year.

CATHEDRAL THINKING

Perhaps the most important contribution of the Middle Ages to our current age is the concept of Cathedral Thinking. This concept has now become relevant as we face the consequences of industrial development which may lead to climate change and yet may not be felt for a hundred years. 

Cathedral thinking is about the work and the time required to build a great cathedral. In the past, many of the workers never saw their work completed and did not expect to. Nevertheless, they were committed to the grand vision of building a magnificent cathedral which became a source of pride to the local community and provided an experience of reverence for the faithful. The work of the builders was seen as an expression of devotion to their spiritual beliefs. 

An example is the York Minster Cathedral in England which was built from 1220 to 1472 or over more than 250 years. While other cathedrals did not take this long to build, a hundred years or so for their construction was not unusual. 


CONCLUSION 

So my Theory About The Human Understanding of Time (HUT) attempts to explain how humans developed a sense and concept of linear time from its earliest beginnings right up to today. Since time is so important, a deeper understanding should help us as a species.

Today, in our digital age, even clocks depict time as linear, 
with numbers always going forward rather than the implied repeating cycle 
of earlier round circular clocks.