[ExI] Interstellar Travel is really hard

[BillK]

Interstellar Travel is Hard
Published by Steven Novella   Jan 7, 2022

There are many possible solutions to the Fermi Paradox, ways of
resolving the apparent contradiction, and many of them have merit.
But I think a sufficient explanation is simply that interstellar travel is
really hard.

<https://theness.com/neurologicablog/index.php/interstellar-travel-is-hard/>

So at best even an advanced civilization might come up with an
interstellar ship that can manage 20-50% the speed of light and
require tremendous resources.
Interstellar travel may simply seem not worth it.

Further, if you want to transport actual living beings through
interstellar space the challenge is orders of magnitude more
difficult.
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This is a rather pessimistic view (realistic??) about travel to the stars.
But he does discuss most of the options.

BillK