I do not believe that a crypto that would be a viable substitute would be deflationary. I am observing that the most popular crypto today is bitcoin, that it is deflationary, that (many of) its fans like that property, and that it would be a poor basis for an entire economy.

I would genuinely like to hear more about how these future crypto currencies will "Tear the Doors Off the financial system". I got into cryptocurrency in 2012 and I have been hearing claims like that since then, but I have not found any of them plausible.