The big problem with BitCoin is the massive amounts of electricity people are using to mine it. Not very ecologically friendly. I understand that they didn't want to make it too easy to "find" BitCoins as that could be inflationary. Still, perhaps they could have come up with a different scheme for "finding" coins? Maybe something that would solve actual problems like protein folding or something - at least then the electricity being used would be used to solve actual problems in the real world.