Some form of negative consequences is the only way to make iamnotback attempt to block people from dominating a coin, at least the only one I can see.
That is an intuitive way to explain a Nash equilibrium. There are only negative consequences to taking any but the one optimum strategy.
The way I see it, Satoshi's proof-of-work system has a Nash equilibrium over any nearby period of time, but the long-term strategy is to amass economies-of-scale. We need a negative consequence to counter act that long-term strategy.
We also need to do something about the excessive power consumption compared to the transaction rate. A Chinese mining oligarchy (with conspiracy-oriented conjectured State subsidies) is one way to de-escalate the arms race over hashing because everyone else becomes unprofitable, but it violates Nash equilibrium (well it doesn't anymore once the oligarchy capture is absolute).
Barring a solution for proof-of-work, others might argue that DPOS is a better tradeoff to the Troika of SegWit, Sidechains, and Lightning Networks. Frankly I haven't really compared them with a fine toothed comb. Perhaps Charles' IOHK has or will. Maybe Sidechains is orthogonal to the discussion of consensus or maybe not.
I didn't realize it had gotten quite that bad. I'm really sorry to hear that. I hope you are feeling better.
To anyone suffering insomnia, auto-immunity, peripheral neuropathy, loss of motor function in the legs/feet,
and low energy (chronic fatigue, brain fog, etc), try before sleeping digesting 1 tablespoon of curcumin daily mixed with some cooking oil (or much more tasty in coconut milk). And diluted sublingual oregano oil under the tongue in very high dosages (you can't really overdose) swallowed after a few minutes. The wild greek oregano oil is the best with low thymol content. Expect to have rashes and other die off effects. You may feel worse for some weeks before you improve. Expect to sleep
a lot.