--How many of those predictions were based on the erroneous belief that communist states were also valiantly leading the charge of progress? We now know that half the world essentially squandered five decades of human progress.
This seems like an interesting idea but it exaggerates things. First of all, I think that everyone thought that there was a large amount of overlap between research being done in the both the US and the USSR (look at the space programs for example). Second, the USSR did do a lot of very good research on their own (look for example how many Nobel and Fields medal they won as a very rough metric).
To what extent were they underestimating the technical challenges involved?
This seems to be the biggest issue. There seems to have been a massive underestimate of just how tough space travel and associated technologies are. People expected the expense to go down at a far faster rate than it did. On the other hand, some technologies that almost no one saw coming, such as personal computers and the internet have if anything become extremely ubiquitous.
How many misplaced ideas about society were there? Many ideas, like interplanetary colonization, seemed to spring from a belief that people would want to play Daniel Boone in space suits.
I think that this belief isn't misplaced. The cost and tech issues seem to be more relevant. Being Daniel Boone in space is really expensive.
How much of it was driven by the now commonly understood ability of media to twist scientific findings?
Answering this is probably going to be difficult. But I think that even the people who were scientists were extremely optimistic. I don't have the precise year but in I think either the late 1960s or early 1970s, Asimov wrote an essay for the World Book Encyclopedia in which he laid out what he thought was going to happen. There would be colonies on Mars and other planets, and humans engaging in missions to the upper atmosphere of Venus, and about nowish we were supposed to start preparing a generation ship. The optimism was not the fault of the media simply twisting the science.
So, overall, I think for many of these technologies the main issues were not realizing how tough they were along with general unjustified optimism.
This seems like an interesting idea but it exaggerates things. First of all, I think that everyone thought that there was a large amount of overlap between research being done in the both the US and the USSR (look at the space programs for example). Second, the USSR did do a lot of very good research on their own (look for example how many Nobel and Fields medal they won as a very rough metric).
A quick and dirty estimation: the US shows 331 Nobel Prizes, France shows 58, Germany shows 102; Russia shows 27. Russia is also notably larger than either Franc...
SIAI benefactor and VC Peter Thiel has an excellent article at National Review about the stagnating progress of science and technology, which he attributes to poorly-grounded political opposition, widespread scientific illiteracy, and overspecialized, insular scientific fields. He warns that this stagnation will undermine the growth that past policies have relied on.
Noteworthy excerpts (bold added by me):
In relation to concerns expressed here about evaluating scientific field soundness:
Grave indictors:
HT: MarginalRevolution