So I've got a new Fermi paradox solution. Once we build a large enough radio telescope we will start receiving a lot of chatter from around the universe. Buried in this will be a "high energy physics challenge" involving a powerful particle accelerator, a superconductor, and some synthetic elements with very large nuclei. After performing this challenge there will be another asteroid belt where Earth used to be, and…
If that's never been written before, I hope someone does.