Interesting (and sad IMHO) how he qualified this at the end:
All I’m doing here is making a simple, and I believe non-normative empirical observation: that something new is happening on the divide between liberalism and the left over the question of free speech.
I've been having trouble deducing causality from the the near 1-to-1 association with being tenured and "going quietly into the night", if you will. That lifestyle ain't for me. No worries.
But yes, radicalism of late has enjoyed an increasingly positive feedback loop. Probably happens to every civilization right around the time they first hit the Internet's "on" button. So much of this radicalism is attributable to the changes brought about by the increasingly rapid changes to how information is disseminated. No reptilians required. Just too many pieces of garbage all vying for the top can.
Edit: Hey guys, I wanted to stress one thing: I'm only making some empirical observations here. Hopefully nobody thinks I'm challenging their viewpoints or feels tempted to accuse me of a crime in the hopes of removing me from the Hubski faculty