Bitcoin has a chicken and egg problem. You claim it will have that stability once its adoption has increased but its lack of price stability is a major hindrance to people adopting it as a store of value. Right now, pick any window of time from 24 hours to a century. I am much more confident that any of us could predict the value of USD, EUR, or GBP than Bitcoin. That is a big problem and it more important than any "but the inflation" arguments.