I think the game is bugged, because it can not work with numbers bigger than 1e300 :( and because of that I can not buy more generators, or more universes, and I still did not find a way to complete dilatation level 20 :(
Dilation level 9 gives you all upgrades. There is no point is reaching higher.
Focus on finishing the game in the shortest time possible, beat your own best time ;-)
the game isn't bugged, 1e300 is basically just the "you beat the game" number
