[redox99]

Probably the same reason PoW is wasted on "useless calculations" instead of calculating protein folding or whatever.

Because these useless calculations have cryptographic properties (one way functions) that make the process secure. Useful calculations instead of just calculating a simple hash function would either be risky in term of future security (because of unknown properties), or outright insecure.

[rhodorhoades]

Completely off topic and not really relevant to your comment buuutttt Banana coin’s ‘POW’ is based off protein folding and contributing to medical research. It’s a joke and you aren’t enabling consensus but you are getting banana emissions for ‘noble causes’, which I found was fun and regularly run it when I go to sleep.