It’s not that we’re incapable of building it. We’re just not using the methods that they used to build it.
This one guy is building his own stonehenge by himself.
http://www.youtube.com/watch?v=-K7q20VzwVs
They’re building one up the pike from me.
Maybe so but that is probably a minor part of the whole story. The site may be 5,000 or more years older than 2900 BC. I watched a show about a pit of burned human bones dug up there around 1900, studied, placed in a leather bag and reburied in the same hole. They weren’t the elite.