Money 2.0 Stuff: Upgrading Blockchains Is Like Cleaning a Pig

Upgrading blockchains is always a can of worms. Adding the crucial SegWit upgrade to Bitcoin took two years of extensive debate.

The first question most normal people have is "How do you plan upgrades for a decentralized thing?" This is perfectly reasonable, because once these networks are out in the wild, in theory, no one really "decides" how they work. Blockchains have rules, and these rules are defined in software.