Hi,
I think there might be a quarantine effect in the universe.
Although we know that there is a lot we don't know yet about travelling over vast distances, it appears at least possible that there is no point to even trying - for any civilisation.
At our present stage of knowledge it is hugely difficult to even imagine getting to the nearest star in a meaningful fashion.
I'd like to see our top thinkers considering this as a more integrated subject - so there is a probability of life elsewhere, then, what is the consequent (Bayesian) probability of it travelling to our region? Or anywhere?
We are so ignorant really that it is all moot, for now.
Cheers
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