Science
Related: About this forumWhere are all the aliens?: Fermi's paradox explained
https://phys.org/news/2025-04-aliens-fermi-paradox.htmlBut given the age and vastness of the universe, a different question has long puzzled some scientists: Why haven't we already come in contact with aliens?
"Where is everybody?" Enrico Fermi asked fellow famous physicists including Edward Teller over lunch in 1950.
This quandary was named Fermi's paradox.
. . .
An interesting analysis of some leading theories follows. Pretty easy to read.

Moostache
(10,454 posts)But I had to quit reading as soon as I got to the obligatory fellatio on Elon Musk...
Musk is NOT a visonary nor an inventor. He IS a drug-addled fool and leveraging of luck and providence into money and power. He is no smarter than millions and is objectively an asshole beyond belief....
brush
(59,597 posts)"...he was born on third base and thinks he hit a triple."
Musk's 'genius' is shown in his singular creation/design is in the deplorably ugly Cyber Truck. The one think I say about Musk is he did better with his heads tart/inheritance than his fellow rich kid, the sick fuck trump.
They're both blowing it with DOGE and the clown show trump 2.0 admin.
erronis
(19,136 posts)The rest of the article is good as an overview but doesn't break into any new theories.
brush
(59,597 posts)therefore trillions x however many planets. To think our Earth is the only instance where life has developed is not a sign of intelligent life.
And what accounts for the many unexplained sightings by pilots, both military and commercial, of UFOs with speed and inexplicable, other-worldly maneuvers never seen before?
Xoan
(25,501 posts)erronis
(19,136 posts)PoindexterOglethorpe
(27,765 posts)Plus, if we were to actually pick up broadcast signals from some distant planet (something I consider highly unlikely, BTW) we'd need to take into account the distance of that planet (say, 60 light years away) and know that the signals originated a very long time ago, and no telling if that civilization is still around.
Fermi had no clue just how vast even our own galaxy is, let alone the Universe as a whole.
GreenWave
(11,084 posts)Why would they come to a surface air breather planet? Most planets if they have life will be subsurface.
What if they came 6 billion years ago? No Earth!
etc.
multigraincracker
(35,467 posts)Staph
(6,392 posts)in "Vlad the Astrophysicist". I've met both Peter and Vlad!