Taleb holds that essentially all journalists are fools, and the articles they publish are "noise". He says "to cure yourself of newspapers, spend a year reading the previous week's newspapers". There's wisdom in this: the importance of the news of the day can't be immediately apprehended. What seems important at the time can quickly fade into irrelevance. Larger stories are often completely missed or gotten totally wrong.
Buuuuuut apparently what Taleb means is that no one but him can figure out the importance of things immediately. The guy tweets, apparently believing that he understands the lasting importance of what he's tweeting about. And hey, maybe he does... except, among other things, he's in (or was in) a twitter war with JK Rowling!
The guy is a loon who has figured a lot of things out, and now believes he knows everything.