In my opinion, we cannot compare blockchain and AI : blockchains are a type of data structure based on hashes, while AI is a wide and fuzzy concept with differe

In my opinion, we cannot compare blockchain and AI : blockchains are a type of data structure based on hashes, while AI is a wide and fuzzy concept with different meanings over the years. Process automations and "AI" (let's say, complex autonomous systems) are parts of a bigger picture which is the digitalization of the society. Sometime, they are sold as a drop-in replacement for current human processes, but it actually works in only a few common cases. The issue with AI and automation is not necessarily a technical one, the issue is the shift to a different ownership model, trust model, maintenance model and faster improvement model than the ones being believed possible, or currently in place for the last decades. It's not that software cannot replace people, rather that big corporations are resistant to changes. We don't need to introduce AI to see the internal inefficiencies of big employers... Technologies fundamentally change the meaning and content of "work", but people cannot fundamentally change that fast. Budgets cannot change that fast, investments cannot change that fast, regulations cannot change that fast, etc. There will be a lot of preliminary work to do in changing the educational system, regulations and also changing the redistribution of wealthiness, before "AI" actually happens.