Few things age so poorly as visions of the future. Mind brain machines appear to have faded in popularity without bringing the life and culture changing benefits that were promised. The war on drugs drags on, despite legalization of marijuana in some states the Federal government continues to forbid its use. Nothing appears to have come of Buckmaster Fuller's design for an electric grid that would swap power between continents, reducing overall need for generation. Despite the efforts of Musk and other wealthy people it seems unlikely that space colonization will be a reality. Obviously one could go for pages listing unanticipated developments, such as the War on Terror, etc. but since futurists do not claim prophetic powers that would be pointless.