Prob not brave enough 😂 With a pool i have a guaranteed income and can calculate at what time the investment is payed off and at what price i heat for free and such things... The only assumption is that bitcoin continues to go up in price.. Then wait a few years and it should be fine... On the solo side it completely depends on luck... Of course if i hit a block this compansates everything.. But in the worst possible case i will have zero after the same time... And still spent a lot on electricity There are soo many factors its extremly difficult to say ...