Hmm, could you expand on that? While it is an overwhelming engineering
problem, to be sure, if one assumes another 2000 years of engineering, I
cannot see what basic principal of physics would keep a spacecraft from
traveling at 1 million kilometers/hour.
I seem to be sending the same email twice (violating causality I guess). My pessimism about all of the really good SF stuff relies on FTL not mearly nearly speed of light. Given the distances we are talking about and the effects of relativity it seems to me that effective communication/travel will be impossilbe on the scale of human lifetimes.
