Question is, even if this happens, what is going to be the real purchasing power of these millions of dollars, or the 0.1 BTC
If in the future, the purchasing power of 0.1 BTC is going to be the same as 0.1 BTC today then, well, great that I have saved, it kept the value, I'm much better off than as if I kept dollars, but I'm not a millionaire, meaning a wealthy person. I'm just a nominal millionaire in USD worth less...
But of course, it is also possible that the purchasing power of Bitcoin will grow in real terms as well, due to increased demand, halving, etc.
Time will tell. For now, stack and hold, in cold storage, at least that's my plan, for the long term.