Decentralized systems supported by, like blockchain or distributed ledger provide the way of creating systems in a self improved way controlled by some kind of a directed evolutionary algorithm. If we consider bitcoin and the mining evolution, the bitcoin protocol directly makes incentives for a directed decentralized evolution resulting the appearance of the more and more efficient and advanced mining devices. Another interesting example might be the cryptokitties application, in which the appearance of the different digital lifeforms are controlled by a market mechanisms.
