Although I agree with some of this article, I find the closing paragraphs frustrating.
How can they go from "Twitter's boss [...], Facebook is working on some kind of crypto [...]. Market analysts and pundits provide cheery reassurance [...]" and then close with "This one guy is sceptical" and present the two sides as completely equal?
One side has, in their own words, market analysts (plural), among the top tech companies... The other side is a single computer scientist (read: non-market analyst), yet both sides have equal weight? Or, more accurately, they weigh the opinion of the single computer scientist over the above mentioned?