Theranos also had massive capital, large corporation partners, years of work and many scientists working on it.

The dot-com bubble was similar.

The onus is on the cryptobros to prove its usefulness, not the other way around.

Is your theory that anything with lots of money shoved into it must be good? If so, can I interest you in some tulips? Or, more recently, a few thousand shipping containers of unsellable 3D TVs?

Ah so that’s your criteria, you should have said.

That was the whole point, it's here and now vs. what could be.

I think his point is that what you claim to be "here" and "now" is different than what is actually here and now. Just having funding and effort getting put into it does not mean it actually delivers on it's promises. That said I find no reason that cryptocurrencies couldn't deliver given enough time. I just find what they are delivering to be something I rather wish wouldn't exist.