Re: Potentially The Most Serious Military Threat Of All
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Still, I have to say that there is absolutely no way you can know this to be true.
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1) Physics of space travel - physical barrier of the speed of light (unless you think they can put enough military hardware on enough ships that requires cryogenic sleep to traverse the long distances) makes travel over large disances virtually impossible.
2) Physics of time travel - time's arrow.
3) Physics of cute sci-fi methods - wormholes would be so small and unstable that they would collapse very fast and not be suitable for use even if they exist.
4) Chronology of galactic civilizations - since observational evidence has thus far shown no other evidence for life, it is possible that such life has existed and died, just as our own solar system will billions of years from now.
You need to check out The Fabric of the Cosmos by Brian Greene and google for Stephen Hawking's lectures on space and time travel. Otherwise you'll just be another UFO kook who put more emphasis on the "fiction" part of science fiction.
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