The Fermi Paradox is the thought that there is a high likelihood of extraterrestrial existence, yet there is no evidence for any.
I kind of disagree that there is no evidence for any.
Sure, there is no
direct evidence of any.
But considering all we know about life, the universe, planets, stars, chemistry, physics,.... I'ld say that this large body of evidence makes extraterrestrial life very very plausible.
What are your solutions to this paradox?
We have only investigated the equivalent of a fraction of a fraction of a fraction of a fraction of..........(etc) ...of a pixel of the ultra high definition image of the universe.
I like how Neil deGrass Tyson once said it:
"Imagine scooping a glass of water from the ocean and then looking inside and not seeing any fish in it. Imagine then saying 'how come there are no fish in there? Are there no fish in the ocean?"
Consider that we BARELY only made it out of our own cosmic backyard, does it REALLY come as a surprise that we haven't encountered life "out there" yet?
Humans have visited exactly one celestial body: the moon.
Machines have landed on exactly one other body: Mars.
Sure, it would have been cool to find microscopic life there...
But the fact that we haven't... is that really then proper to then ask "how come we haven't found extra terrestrial life yet?????" as if that means something?
I have this in Science and Religion because I'm interested in religious takes as well as scientific ones.
The idea that trips me out the most is that we are perhaps the first advanced species in the universe. The first. Well, some species has to be the first. Maybe it's actually us. What a grand and most unique opportunity this offers humanity.
Another theory I heard was that advanced alien civilizations know to stay in the dark, for fear of being wiped out by other civilizations.
What do you think?
When it comes to "advanced" civilizations (as opposed to
any type of life) I think the same applies as above, if not even more.
Let's take earth as a blueprint....
It took 4
billion (!!) years of evolution for ONE species to have evolved to the point where advanced civilization was even an option.
We humans exist, what.... 120.000 years?
Now consider that we only have been capable of sending out signals into space for ~100 years.
Space travel (to the moon and back) only ~50 years.
Travelling to Mars, still our own cosmic backyard, is somewhat being planned, but don't count on it happening any time soon either - ambitious optimism aside.
So what that tells me is that while it might very likely be that life is abundant in the universe - "intelligent" life isn't.
Do I think it exists "out there"? I think again that it's very plausible - even only because of the sheer numbers involved (BILLIONS of galaxies, each hosting BILLIONS of stars and planets).
Say that 0.001% of planets with life on them produces "intelligent" life.
It did here, so it can happen elsewhere also.
The universe has existed for 13.7 billion years. Yet the "signals" we send out into space traveled no more then ~100 lightyears.
Let's suppose that 50 lightyears away, there's another intelligent species on some planet.
Considering it took us +100.000 years to get to a tech level where we can even "scan" space for these signals, chances are enormous that that species is still in "hunter gatherer" or "bronze age" stage. No signals will be send or received there.
So even IF we assume that there are BILLIONS of advanced civilizations spread out across the universe.... chances are enormous that each of them is thousands, if not millions, of light years away from all the others.
For all these reasons, I think it is:
- highly plausible that there exists life "out there"
- pretty plausible that some of that life is "intelligent"
- extremely implausible we will ever meet or know about them
So in other words.... I don't really think this is a paradox at all.
I don't think it requires special explanation.
I rather think that not finding / meeting / discovering them (should they exist) is exactly what I would expect.
Actually finding them is what would surprise me.