Prescience and Spice and Everything Nice

There is prediction, and there is prognostication. And, once in a great while, there is true prescience.
Consider the case of J.C.R. Licklider - a seminal figure of whom, until recently, I had never heard. On reading about him, I am staggered by his dead-on prescience in predicting the ultimate power of social connections via the internet - back in 1960. His Man-Computer Symbiosis has to be read to be believed. In it he touches on the obvious: the need for speed, memory, robust programming languages, and effective I/O. But he goes much deeper, brilliantly identifying memory and its organization (which leads to necessary "searchability") as necessary developments before the symbiosis can happen:
Man-computer symbiosis is an expected development in cooperative interaction between men and electronic computers. It will involve very close coupling between the human and the electronic members of the partnership. The main aims are 1) to let computers facilitate formulative thinking as they now facilitate the solution of formulated problems, and 2) to enable men and computers to cooperate in making decisions and controlling complex situations without inflexible dependence on predetermined programs...Prerequisites for the achievement of the effective, cooperative association include developments in computer time sharing, in memory components, in memory organization, in programming languages, and in input and output equipment.
And note the reference to emergent behavior: to enable men and computers to cooperate in making decisions and controlling complex situations without inflexible dependence on predetermined programs.
Man-Computer Symbiosis reminds me of one of my favorite sci-fi books, although pigeonholing it into that genre doesn't do justice to Last and First Men: A Story of the Near and Far Future, by Olaf Stapledon. Here Stapledon predicts the fate of mankind from Stapledon's present (1930) through the next two billion years, during which mankind evolves through