and how high would the centre post be?...and since when was Stonehenge neolithic?
It's a wonderful idea...but why is it the only one? if it had worked would they have not copied the idea on a smaller scale at many other places (or was there a patent taken out?).
I once had a dream that Silbury Hill was the last remains of a giant species of land living limpet...recent excavations have proved me wrong.