SF from the sixties and seventies is also filled with predictions which were not nearly ambitious enough. (Two examples that come immediately to mind: I recall

SF from the sixties and seventies is also filled with predictions which were not nearly ambitious enough. (Two examples that come immediately to mind: I recall one of Heinlein's characters describing something that seemed a lot like a microSD card. It had a capacity of something like a million words. I got the impression that it was quite expensive. And in Neuromancer, "three megabytes of hot RAM" was contraband.) (I think actually those examples are both from the eighties, but I don't think that's particularly important in this case.)