I don't think it's obvious that we could detect that a probe had been
sent to a star. And in any case the observable universe is very much
bigger than our galaxy.
Brent
On 1/18/2017 9:25 AM, John Clark wrote:
Bruno Marchal wrote:
>>
Betters
pace telescopes
would be great but they're not needed for that. If God or ET
existed it would be obvious to a blind man in a fog bank.
>
Assuming a small universe, but nothing prevents the existence of
Aliens in far away galaxies,
If you're talking about
an infinite universe then I agree, but I think it's very unlikely
space aliens exist in the observable universe because even
if we make the ultra conservative assumption that
ET can't send space vehicles any faster than we can
they could
still
send a von Neumann probe
to every star in the Galaxy
in less than 50 million years
, just a blink of an eye in a universe 13.8 billion years old, and
then you wouldn't need huge telescopes to detect ET, it would be
obvious to all.
John K Clark
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