tl;dr it shouldn't take as long as previously thought to colonize the galaxy based on a simulation. That's largely an irrelevant finding that adds nothing to t

tl;dr it shouldn't take as long as previously thought to colonize the galaxy based on a simulation. That's largely an irrelevant finding that adds nothing to the Fermi Paradox because the time it would take to colonize the galaxy is so small in cosmological terms that shortening it is irrelevant. What's more the authors decided to modeled the suitability of star systems impeding colonization when this seems like it would be largely irrelevant because starfaring civilizations seem highly unlikely to be planet-bound as this is a pretty inefficient use of mass. The Dyson Sphere (Swarm) seems much more likely at which point the only thing of value is the star. The planets are just piles of raw materials ultimately. Obligatory plug for Isaac Arthur who has a series of videos on the Fermi Paradox. Here's an early one [1]. There are 10-20 others that go into particular aspects. [1] https://www.youtube.com/watch?v=rDPj5zI66LA https://www.youtube.com/watch?v=rDPj5zI66LA