Profile
That's the Fermi Paradox for ya.
There are trillions of stars, billions of which are like our sun, millions of those should have earth like planets orbiting them. Many of those will be millions of years older than our planet. If pretty much any of those Earth like planets that are millions of years older than us took a turn that allowed life similar to humans (in terms of development of tools and the ability to think) to evolve then by now we should see literally any kind of sign of them. I mean, Homo Sapiens emerged 300.000 years ago and look how drastically we changed as a species since then. Now think a species like that with millions of years of head start.
The distances are pretty vast for sure, but the Milky Way is only 100,000 light years across. If they developed millions of years before us, even traveling at slower than light speed that's still plenty of time to make sizable footprint in the galaxy. One that, even if they didn't come to our little corner of the Galaxy physically, would probably give off other signs of its existence like communication signals which we could detect.
And yet, we don't see signs of such species, living or dead. Hence the paradox.
There are trillions of stars, billions of which are like our sun, millions of those should have earth like planets orbiting them. Many of those will be millions of years older than our planet. If pretty much any of those Earth like planets that are millions of years older than us took a turn that allowed life similar to humans (in terms of development of tools and the ability to think) to evolve then by now we should see literally any kind of sign of them. I mean, Homo Sapiens emerged 300.000 years ago and look how drastically we changed as a species since then. Now think a species like that with millions of years of head start.
The distances are pretty vast for sure, but the Milky Way is only 100,000 light years across. If they developed millions of years before us, even traveling at slower than light speed that's still plenty of time to make sizable footprint in the galaxy. One that, even if they didn't come to our little corner of the Galaxy physically, would probably give off other signs of its existence like communication signals which we could detect.
And yet, we don't see signs of such species, living or dead. Hence the paradox.
