And becomes a giant world currency...
Wouldnt there be quite the HUGE interest by govs of US, russia, china to own huge parts of it?
When price will be anything near $100k there will be huge interest from US specially to crack it down or atleast limit the use of bitcoin in their country because it will be a big threat to their existing financial system full of debt.
China already got frightened and now imposing lots of limitation on bitcoin trading or might even ban bitcoin completely.