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Science
In reply to the discussion: Bill Nye's Answer to the Fermi Paradox [View all]PJMcK
(21,995 posts)2. Telepathy?!
Let's stay scientific. Perhaps the aliens use higher frequencies or lasers of other forms of light for communications. Or maybe they invented a different technology that humans have yet to uncover.
The universe is very big and very old. It could be that other civilizations are just too far away to be detected. Certainly, we would only be able to receive communications from a planet within the Milky Way. Any other galaxy is tremendously far, far away.
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All our communications methods consist of using the electromagnetic spectrum.
LiberalArkie
Feb 2018
#1
Sorry, out was the only thing that came to mind that fit "they might not use the same
LiberalArkie
Feb 2018
#8
Your digital TV can not pick up the old analog signals. Your digital TV would
LiberalArkie
Feb 2018
#9
I don't think it's inevitable that a technological civilization will destroy itself before .........
LongTomH
Feb 2018
#12
If we, as a species, continue to evolve, then it will be our evolutionary successors.
LongTomH
Feb 2018
#17
And in those 200 million years what, exactly, have alligators accomplished?
PoindexterOglethorpe
Feb 2018
#25
Not as simple as just tuning to the specific frequency, but to be able to decode the information.
SeattleVet
Feb 2018
#31
The first problem is that this is not so much a paradox as a question...
TreasonousBastard
Feb 2018
#15
Tight beam communications, like lasers or masers, are more efficient. Broadcast is wasteful.
tclambert
Feb 2018
#23
That doesn't seem to me to be a paradox at all considering the vastness and distances of space.
brush
Feb 2018
#27
The sheer size of the Universe makes it very difficult to receive signals from other civilizations.
world wide wally
Feb 2018
#36