I'm curious if Greg and MAR Barker ever crossed paths?
Both men developed elaborate fictional universes leading up to the 1970s with comprehensive mythologies etc that were entirely divorced from the rather-pedestrian Tolkienesque canon.
Both men worked on developing role playing rules to experience these worlds (RQ for Glorantha, and EPT for Tekumel).
Tekumel is a fascinating world (frankly, I used Sandy's Tekumel stuff as my "Western Magic" fodder, worked great), I'm curious if these two minds ever encountered each other? Seems like they'd have had a lot to chat about.