Years ago, when I was in middle school I saw a video with a knock off line that stones in S. America were softened with a flower. Don’t remember much else about the movie, but did find more references with convincing (to me) evidence that the conventional explanation has a few lacking points.
http://davidpratt.info/andes2.htm
The pictures are striking.
DK
I absolutely believe this is possible. They may have had a way to soften stone. The question would be how did they move some examples of these megaliths. Some would have had to be moved across sheer cliff valleys from the quarry and no roads or bridges to where they were erected.
Kind of an interesting site, scroll down to the “MINER BIRDS OF THE MONTANA” short article excerpt about softening stone. :)
http://www.spirasolaris.ca/index.html
“Fig. 5.7 A common ancient method of splitting stones was to make a series of small holes and then insert saturated wooden wedges which expanded and cracked the rock. Left: Machu Picchu quarry. Right: Aswan quarry”
Wouldnt one want to put dry wood in the holes and then add mositure?
Fascinating article.