And I think holding that our ancestors developed or possessed 'advanced technology' is saying they were as smart or better than we are now.
No. Carving stone with simple tools demands better skills than using advanced gadgets.
Tell me, who's more skilled-
The guy who can't carve well using modern tools or the guy who creates a masterpiece with simple tools?
Face it- those folks could do with simple tools what you can not with modern tools. You are not exactly a supreme refference in stone carving, interpretation of myths, identifying things in the sky, hunting big game and 'fermenting arts'. You are just overblowing your skills and credentials; something other defenders of fringe subjects also do.
I hold that man's development has NOT been a slow steady rise to whom we are now. Instead, it would appear to me that our development has been marked by peaks and valleys. We HAVE suffered losses in technology, civilization, and knowledge.
Oh, and as evidence you present what? Ignorance of science, architecture, stone carving, lack of skills and imagination coupled with overblown credentials/skills and prejudice against humans which lived centuries ago?
Where are the remains of the industrial, mining and farming complexes such advanced civilizations would require? You can't build a screw driver or a vimana out of thin air, you know...
YOU on the other hand suggest that our ancestors would moronically have attempted to cut hard stones with bronze tools, even if it took them a really long time.
Get your facts straight and do not distort my positions.
I say our ancestors
skillfully and painfully carved stones with simple tools, creating masterworks. The only things that could be labelled as moronic are arguments such as yours quoted above.
Moreover, I would greatly appreciate it if you stopped attributing arguments to me, that I have not put forward. I have NOT attributed these works to anyone. I have ONLY said that whatever did this work is now 'lost'.
Please set your claims and facts straight, for you claimed more than once that such were the works of "ascended people", "skygods", another race, etc.
Stones don't have halflives. Isotopes do. And yes, there have been studies of radiometric decay in diorite. 
