If u put everything to mastery and keep your power around a point to lvl up in 10 pounch, then u can simply broke the game around rebirth 6 or 7, u just get so much points to spend that u become too powerfull, i just need around 3-5secs to get the level to the next rebirth and if i wait a bit more im goin up to 600-800 in a few minutes which gives me more point to spend, so thats and endless circle i thing at this point, now i dont have the time to play more of it, but i'll give it a shot again today to see if i can hit a wall after that like in other idle games, suggession to devs nerf the mastery a bit with maybe restricting player to get above a certain mastery at each rebirth, it can slow the game down a bit and u can get more out of it, btw funny concept keep it up guys :)