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No....Aliens have not ..."annihilated themselves"..They have been here, taken a look, and concluded: Stuart G Apr 2022 #1
In other words, the Orion Arm of the Milky Way LastDemocratInSC Apr 2022 #14
How close do you think they would have to be for them to know about us Cuthbert Allgood Apr 2022 #2
I'll Add This ProfessorGAC Apr 2022 #9
If They are So Advanced, They Would Have Machines That Would do all The Work Beetwasher. Apr 2022 #12
We Agree Completely ProfessorGAC Apr 2022 #15
Or they've mastered nanotechnology Crunchy Frog Apr 2022 #40
I recall reading that we could detect the electromagnetic emissions of the Earth out to about 100 Dial H For Hero Apr 2022 #24
Here is the answer about "Aliens" Yes, they exist and they have been here, they are avoiding us.... Stuart G Apr 2022 #46
So many assumptions, so little evidence. GaYellowDawg Apr 2022 #47
Does it really matter? alphafemale Apr 2022 #3
Absolutely great question. Delphinus Apr 2022 #31
The universe is enormous iemanja Apr 2022 #4
Not my conclusion. It was one of Fermi's theories mainer Apr 2022 #6
But Fermi had a sample of only one civilization PJMcK Apr 2022 #23
Perhaps a bipedal humanoid form is a favored one for evolution.... A HERETIC I AM Apr 2022 #45
I wonder... 2naSalit Apr 2022 #5
Sometimes I don't want anything to do with us mainer Apr 2022 #8
Will we recognize non-carbon based life forms as intelligent entities? OAITW r.2.0 Apr 2022 #7
That doesn't mean they won't destroy themselves mainer Apr 2022 #10
Well said. OAITW r.2.0 Apr 2022 #13
well, survival of the organism most able TxGuitar Apr 2022 #61
I suspect there just is no such thing as a warp drive. Space is vast. . . . nt Bernardo de La Paz Apr 2022 #11
As the Universe is expanding, we can only and will only ever see a part of it. Kaleva Apr 2022 #16
I'm a Calvinist dweller Apr 2022 #17
+1 n/t area51 Apr 2022 #22
+ another WestMichRad Apr 2022 #41
Maybe they are still around. lpbk2713 Apr 2022 #18
Arghh! Everyone is missing my point mainer Apr 2022 #19
I have reason to suspect that this planet has been visited anarch Apr 2022 #21
Until we make contact or discover remnants of alien civilizations, we'll never know Kaleva Apr 2022 #25
Mainer: Survival goes to the most aggressive and greedy of a species? Irish_Dem Apr 2022 #30
Only now do we have the means to destroy all mainer Apr 2022 #32
I meant we may have reached this level before on this planet. Irish_Dem Apr 2022 #33
Every generation invents its own endtimes nonsense greenjar_01 Apr 2022 #44
Fermi pondered this in the 1950s mainer Apr 2022 #51
Everything dies Ohio Joe Apr 2022 #49
Lots may be out there, but at very low density, so prohibitively expensive to find struggle4progress Apr 2022 #20
Even were an alien civilization comparable to our own to exist only a thousand light years away Dial H For Hero Apr 2022 #26
The science of space is informative PJMcK Apr 2022 #27
Good comments! WestMichRad Apr 2022 #39
2 space aliens looking down on earth. keithbvadu2 Apr 2022 #28
It's a test. usonian Apr 2022 #29
I've long wondered if time travel ... Xoan Apr 2022 #34
Equally likely that they annihiliated themselves through self-induced climate catastrophe Spider Jerusalem Apr 2022 #35
"so where is everyone? " How about: billions of miles away? brooklynite Apr 2022 #36
von Neumann probes The Revolution Apr 2022 #59
There is a planet where they think it rains diamonds. Xolodno Apr 2022 #37
I disagree with the underlying premise of the Fermi Paradox. Crunchy Frog Apr 2022 #38
I thought this is an interesting background on the discussion Retired Engineer Bob Apr 2022 #42
Yeesh greenjar_01 Apr 2022 #43
They're spread out over the vast distances of space, eShirl Apr 2022 #48
My brother-in-law has a strange take - the Fermi Paradox helps him believe in God Amishman Apr 2022 #50
That's why discovery of aliens would shake Christianity's foundations mainer Apr 2022 #52
Have you considered we aren't alone in the grand scheme of time? LiberatedUSA Apr 2022 #53
Best hope they never come here. "It's a cook book"! machoneman Apr 2022 #54
One thing that would do us all well when thinking about this topic. SmallFry Apr 2022 #55
I recently saw an interview with Brian Cox, who is a well-known British astronomer. Earth-shine Apr 2022 #56
There's one possibility that never comes up in these discussions JHB Apr 2022 #57
The vastness of not only space, but also of time are hard to grasp Johnny2X2X Apr 2022 #58
And we've only been using radio waves for a very short time Retrograde Apr 2022 #62
Good point Johnny2X2X Apr 2022 #63
I would recommend Stephen Webb's book The Revolution Apr 2022 #60
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