Most of the theories assume that aliens want to spread out as much as possible. But perhaps they are satisfied with a second star system as "backup"? Maybe they even live inside asteroids or ships orbiting a dwarf star,…
The Orion was proposed over 60 years ago I think. If we consider the low end your time estimates, we could theoretically have received data from Alpha Centauri by now.
What if most galaxies are actually dark matter, and we are the exception?
Most of the theories assume that aliens want to spread out as much as possible. But perhaps they are satisfied with a second star system as "backup"? Maybe they even live inside asteroids or ships orbiting a dwarf star,…
The Orion was proposed over 60 years ago I think. If we consider the low end your time estimates, we could theoretically have received data from Alpha Centauri by now.
What if most galaxies are actually dark matter, and we are the exception?