The game would be better if you could let it run in the background when working on other tabs/screens. It's annoying that you must sit and look at the screen for progress to be made.
So there must be another bug in the game's math. To buy 303 Newspapers I need about 128 quintillion. To buy 320 Oil Rigs I need 61 quintillion. Most of the investments aside from lemonade stands appear to have this inverse ratio as well. Don't know if this is on purpose, but it feels off.
 "MadBurger 3"){kind=icon}
 "Idle Empire 2"){kind=icon}
 "AdVenture Capitalist"){kind=icon}