[nepeckman]

Fun game! My personal answer to the Fermi paradox is that multi solar system civilization is very very hard, and multi galaxy civilization is functionally impossible. Speed of light is slow, space is big, and resources are concentrated. If there is a species with the capability to spread through their entire galaxy, they aren't in this galaxy and they aren't close enough to reach us.

[EvgeniyZh]

My answer is that the values we multiply are too uncertain to give meaningful prediction [1]

[1] https://arxiv.org/abs/1806.02404

[m3kw9]

Mine is they got too advanced and went multidimensional. Sticking to 3D is very primitive thinking when you can manipulate higher dimensions. Primitive 3d species will always think to conquer 3d things.

[michaelmrose]

Common formulations of such theories that might be imaginary have additional spacial dimensions as microscopic not someplace you can really go.