[RFC-0022] PoW reward cap


I approve. I can sleep better at night knowing that PoW will not cause any more inflation than it currently is. I think it’s fair to say that PoW difficulty was expected to, for the most part, monotonically increase as more people mined and miners got more efficient.

We might consider ratcheting the reward in the future so that it can never increase.

Biggest technical concern i can think of is that game theory wise it will peg the difficulty at the level of maximum return given a mining cartel. Thats not a concern if the unmanipulated difficulty would be far from that point, but if its near there (like it is now) it might create some gaming opportunities around the discontinuity.