that is absurd, from 1e36 needed, to 1e48 required???
it is absurd, i pretty much upgrade all planets to get max speed, then i close the tab. i let it run offline for a day, then when i come back i just upgrade exponents. offline gains only increase the score multipliers, but thats all you really need to waste time on. once the multipliers are high enough, you can just increase exponents and rebuy max speed. i get 1 new planet every day. very slow