I expect many of us know of the Fermi Paradox. If there are so many opportunities for intelligent life in the universe, then where are they?
https://en.m.wikipedia.org/wiki/Fermi_paradox
There are various solutions suggested to the paradox (it's badly named; it's not much of a paradox!) 20 common ones are listed at the above link, ranging from "they're here already" to "they don't exist" with a whole bunch in-between.
What do you think the answer is?

https://en.m.wikipedia.org/wiki/Fermi_paradox
There are various solutions suggested to the paradox (it's badly named; it's not much of a paradox!) 20 common ones are listed at the above link, ranging from "they're here already" to "they don't exist" with a whole bunch in-between.
What do you think the answer is?
