What percentage of people that hold bitcoin will self-custody it 15 years from now, do you think?
Without a major protocol change? Effectively no one. I’m assuming in 15 years we’ll have hyperbitcoinization. With 200M transactions/year, the average wait time for 8 billion users is going to be in the ballpark of 40 years. The only people that will be able to use the block space are those willing (and able) to pay for it