Rupert Soskin wrote:
... and a number of people on this forum were involved in a successful experiment to 'row' stones using levers ...
This was Gordon's theory that they were putting into practice, Rupert.Your comments are worth noting about still needing a huge workforce. Crossing over to the henge topic again - as you say, you can't lever out loads of soil. However, you could excavate the rock-cut ditches easier if you quarried large blocks and then finished off with the antler picks*.
*If no one else has proposed this idea I claim for my own - if someone has already suggested it ... Great minds think alike! :-)