Well, the GH/s is currently around 2500000000 GH/s so contributing 50 GH/s you would have a 1 in 50 million chance of mining a bitcoin every 10 minutes. In a li

Well, the GH/s is currently around 2500000000 GH/s so contributing 50 GH/s you would have a 1 in 50 million chance of mining a bitcoin every 10 minutes. In a little over 951 years you are expected to mine 1 bitcoin. Something tells me bitcoin isn't going to be a thing in 951 years.