Actually, one view and one idiotic rant from someone who should not be speaking in public on ANY subject.
You're not wrong. As a rule, we should all be skeptical of anyone whose first response to technological innovation is to cast shade and call it a scam or a worthless idea with no real potential. I'm old enough to remember when people I knew and respected confidently predicted that personal computers would never catch on. Many of those same people later laughed at the idea that the internet would ever amount to anything more than a curiosity.
The more things change, the more some things - and people - remain the same.
In this instance it appears that both are somewhat correct, but Roubini - having a rather critical view and potential set of entrenched interests to pursue by keeping cryptocurrency at bay - is hammering home just what he sees before him, and focusing more on how people are using a new technology, rather than the technology itself. Sometimes, even though there is a ton of crap in our industry that needs to be resolved (like all new things), it takes a while until people really learn how technology will end up being used in a practical sense. This is one of the things that DNotes and DNotes Global Inc. has been intensely focusing on.