"It is much more likely that these architectural devices were used because that was the tradition within which Stonehenge’s builders were working."
Which is how most people think of it I suppose. Reading on Stanton Drew today, where there are also timber circles, the notion is put forward by Gibson, that at some stage stone/timber/henge could have been contemporary, or that stone taking over from timber meant that the religion had evolved into something different.
The point is I suppose that technology, something we don't think of in prehistory, was changing with the times. Stonehenge reflects this by having a changing pattern over the centuries, morticing and tenoning stone is a throwback to old traditions by competent craftsmen...
