Game balance is broken. The pathetic excuse of the dev that you should "optimize" only works if all game mechanics are clearly explained ingame: they are not. The game basically ends when you chose to waste a point into "pay to pay", and click a few times on "get premium currency", then start an auto-clicker on the main currency.

This game is an insult to idle games, and was clearly only developped to screw with the lovers of the genre.