Julian Cope presents Head Heritage

I agree, you learn through gradual improvements and discoveries into the future, but you don't have to use something as unique as avebury as your guinea pig? You do stuff in the lab, or you use a ploughed down round barrow or something about to be built on, if you're going to do something that destroys the very thing you're looking at. If you come up with non-destructive techniques it doesn't matter where you're practising / developing them. But if you're going to use destructive techniques (ie hoiking stones out of the ground) then you're not going to be able to use non-destructive methods afterwards, because there's nothing left to use them on.