a) The chain reaction part seems particularly difficult. I hesitate to give it any percentage, but I'd think less than 5% b) This is arguably the case already. Many people keep their coins on Coinbase, for example. I'd say there will always be such people who are willing to trust a central authority, at least until they get screwed. c) This isn't possible.
Thanks. So we need to push more and educate newbies with focus on self-custody. I do my best.
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