Nouriel Roubini has done the crypto ecosystem a great service by pulling together pretty much all issues and criticisms in a single document. While he is prone to hyperbole (not unlike some people in crypto) and plays fast and loose with technical issues, everyone who cares about crypto should read the testimony in its entirety. Longterm success will require overcoming all of these objections. While I believe that is doable (at least in principle), it will not be easy and it will take a long time. The last thing anyone in crypto should be doing right now is dismissing Roubini as a crank or resorting to other ad-hominem attacks, instead of engaging at the level of substance. Bonus if you make it to the end of the document: an evisceration of permissioned blockchains (again, over the top but entertaining and as the rest providing important objections).
