42
The answer to the The Fermi Paradox could be that space is full of dead aliens
(www.livescience.com)
News and findings about our cosmos.
Subcommunity of Science
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
How about a civilization that doesn't have chemistry at all? Set off a von Neumann machine to colonize the universe and biology is irrelevant after that.
You ignored the other "maybes" I threw out there, BTW. It only takes one of those to work in one situation and the Fermi Paradox is off to the races.