[whatshisface]

If cryptocurrencies saw serious use, Bitcoin would self-limit at a sustainable level and new currencies would be invented to deal with those issues. The biggest problem with cryptocurrencies is that US dollars are actually pretty good.

[duxup]

>and new currencies would be invented to deal with those issues

That seems like a pretty big hassle.

[whatshisface]

That's what the research is now, and many partial solutions already exist.