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Fermi paradox

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Hi NG

I just recently stumbled over this video

https://www.youtube.com/watch?v=rXfFACs24zU

It's about 'the Great filter' and means, that if we can't see UFOs, the 
likelihood of stable civilizations is small.

But I wanted to say, that we can only see our own past light cone and 
that extends backwards in time, if we look at events further away.

And if we look at distant galaxies several billion light years away, we 
also look backwards in time by billions of years.

But possible civilizations so far away and of the same age than our own 
solar system are not visible today, because we need to wait for billions 
of years for any signal from there.

There is also the possibility, that our universe is only a subset of all 
possible worlds and other universes are actually populated, though 
invisible.

Or possibly such 'aliens' belong to a different 'time domain', where 
their day is a thousand years long for us.

TH

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Fermi paradox Thomas Heger <ttt_heg@web.de> - 2026-05-06 10:52 +0200
  Re: Fermi paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-05-06 08:37 -0700
  Re: Fermi paradox The Starmaker <starmaker@ix.netcom.com> - 2026-05-06 11:10 -0700
    Re: Fermi paradox The Starmaker <starmaker@ix.netcom.com> - 2026-05-07 00:47 -0700
    Re: Fermi paradox Thomas Heger <ttt_heg@web.de> - 2026-05-07 10:14 +0200
  Re: Fermi paradox Ray Stone <rstonetech80@nospam.invalid> - 2026-05-12 11:31 +0000
  Re: Fermi paradox The Starmaker <starmaker@ix.netcom.com> - 2026-05-12 10:52 -0700
    Re: Fermi paradox Thomas Heger <ttt_heg@web.de> - 2026-05-13 07:57 +0200

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