On December 9th, 1998, a public symposium was held at Stanford University to celebrate the 30th anniversary of Doug Engelbart's 1968 "Mother of All Demos" and all that it represented and inspired.
YOUTUBE ajUmXLsM5qY Published on Apr 30, 2015.
This session kicks off the afternoon with a discussion by Doug Engelbart and Jeff Rulifson about the the revolution that is yet to happen, followed by Ted Nelson's ongoing work. post 
See Doug's Demo at 50 for more recent reflection.
The complexity and urgency of the problems faced by us earth-bound humans are increasing much faster than our combined capabilities for understanding and coping with them. post