Great thread, Ted
Your 6 hypotheses are inextricably linked, and to the ancient links….
The linchpin was Pete Dye, whose trip to Scotland in the early 1960’s influenced Wind who influenced Crenshaw (and thus Coore, indirectly). Pete also directly influenced his apprentices Doak and Coore (who influenced Crenshaw). All 4 of these men influenced many others (including Ran--who has influenced many on this forum, etc. etc.).
The “renaissance” in GCA has been similar to the Renaissance in art and architecture of 500+ years ago in that its central element has been a rediscovery and rebirth of the intrinsic values of the principles of classical antiquity--firstly in Scotland (rightly so, as it was first) but also in Ireland and even England. It is also similar in that it has fostered increasing numbers of pilgrims (some of whom are hopelessly converted and some of whom remain inexplicably underwhelmed) to the ancient shrines.
As was mentioned above, Harbourtown was the seminal event of this renaissance. In many ways it was more influential than NGLA, the manifestation of the earlier renaissance led by CB McDonald. CB’s renaissance frittered away after 20 years or so. Dye’s is still going from strength to strength.
Rich
PS—isn’t it interesting how much Indiana figures in this topic? Dye, Morrissett, JakaB, Sturges….? If you look it up, you’ll find that in terms of population and area, Indiana and Scotland are doppelgangers. And, I think there are some great dunes up there amongst the abandoned steel mills near Gary……