Comment by nemo136
4 hours ago
Idea for a science fiction short story: dark matter interacts with normal matter only in specific conditions requiring advanced science, with extremely rare occurrences naturally.
Humanity, after migrating from biological carbon based substrate, finds ordinary matter not practical to live in. Dark matter has much better properties.
All humanity transfers to dark matter where it finds all the other "ascended" species historically hosted by our universe. Solves Fermi's paradox and keeps the "normal matter" nursery clean for new species to appear.
This is a cool idea.
I was tempted to comment that there’s no evidence that you can make anything complex out of dark matter, but it turns out that some physicists hypothesize that “self-interacting” dark matter could bind into something like atoms and molecules, so carry on!