From the Brink of Extinction (Ruins of Old Earth) The reason that we can't understand how ancient people with no technology, machinery or even decent tools could have accomplished what they seem to have been able to do is very simple. They didn't do it. They occupied and used what was available to them from before a near extinction event occurred. Some of what they were able to use had become exposed by time and erosion. I think that long before that time the world population had grown way beyond what we currently think is possible for our planet to support. With the methods in use today there is simply not enough room for all of the housing, industry, and agriculture required to support a population of that size. The most important consideration to be able to support an extremely large population would be the ability to provide enough food. There is no way to work around the fact that agriculture requires sunlight and a reliable source of water. There needed to be a way to have enough room for all of the people and a way to ensure a reliable source for all of the food that was needed. Pyramids are the key to understanding how that problem was solved. In places where erosion has exposed them the visible evidence varies depending on how much has been exposed and eroded. In spite of that fact if you spend a little time comparing them they leave behind very identifiable "footprints" as they erode away. Evidence in this video suggests that a pyramid was an architectural support. The steps of a pyramid supported levels for habitation and industry below the surface. Other functions that appear to have been incorporated into their designs include control of networked irrigation and drainage systems and access to other levels. The methods in use at that time would solve many of the problems that we face today as well as other problems that we have not yet had to deal with. Terrible storms, flooding, droughts, fires, inadequate food production, expensive climate control, and high insurance costs from damages to name a few off the top of my head. If a surplus of water occurred, it would flow into the networked irrigation and drainage systems, be stored in above and below ground reservoirs, and used when needed. The worst damage that could occur would be localized crop damage from some types of storms. There appear to have been both dome shaped and long rows of surface structures that are eroding away, with interior divisions being exposed by wind and water erosion. There are places with erosion occurring by levels that are loaded with the type of "footprints" that pyramids leave behind, as well as fractures in the surface of the higher ground in the surrounding areas that lead to evidence of being artificially supported. Some of the most interesting places to examine are where it seems that one layer is eroding away and exposing another. Especially if the surface that is eroding away has features that do not appear to have been naturally formed. Random thoughts: The longest North/South line at the bottom of the Pacific is 8 to 10 miles wide (So are the intersecting ones) and can be followed for 2,100 miles in a perfect line. The symmetry of some of the underwater mounds is amazing. Pick out a perfect looking 20 mile in diameter mound. If you anchor Google Earth's measuring tool in the right place you can go the same distance in any direction and be at almost exactly the same depth. The similarity of circular formations in different sizes on land is obvious, including the location of possible supports around the outside diameter in predictable locations. Evidence at Easter island and at Train rock (which follows Easter island in the video) appear to support that possibility. What is left at Stonehenge could be the center support structure of an ancient dome shaped building, there is another location that looks very similar to Stonehenge but has not been exposed. The material used for construction was not quarried, finished to size, and set in place, it was poured. Today the binding agents are separating from the sedimentary material and being carried to lower levels by the flow of water. There are similarities between the large statues at Easter island and columns found in ancient ruins that could mean that the natives of Easter island carved existing ruins there to make the statues. It is very likely that Ankor Wat was created out of what was left of an eroding pyramid. There are pyramids in Australia. The evidence of ancient East/West irrigation channels around the Okavango delta in South Africa covers approximately 500 by 700 miles. https://vimeo.com/48271595