I swear I have not fully devoted the necessary attention and cognitive energy to this topic but my peripheral sense is that UFO's are clearly real? And have been hanging around our airspace for a while?
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Replying to @chrislhayes
UFOs just means unidentified. Obviously there are flying objects we can't identify. They may be ETs but that's really, really unlikely.
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Replying to @HeerJeet @chrislhayes
how do you measure the background likelihood of ETs though? there is no data
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Replying to @ryanlcooper @chrislhayes
We can make some conjecture based on fact its hard or maybe impossible to travel faster than light.
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Replying to @HeerJeet @chrislhayes
*maybe* being the operative word though. physics has been totally revolutionized many times. and even if so, it's not at all hard to imagine a sublight civilization spreading through the whole galaxy in a few million years
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I also factor in the inability of existing SETI programs going back 50 years to detect signs of life in neighboring solar systems.
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