Caleb Cain was a college dropout looking for direction. He turned to YouTube

[Dennis Donovan]

3. *This is telling* (from the same article)

The radicalization of young men is driven by a complex stew of emotional, economic and political elements, many having nothing to do with social media. But critics and independent researchers say YouTube has inadvertently created a dangerous on-ramp to extremism by combining two things: a business model that rewards provocative videos with exposure and advertising dollars, and an algorithm that guides users down personalized paths meant to keep them glued to their screens.

“There’s a spectrum on YouTube between the calm section — the Walter Cronkite, Carl Sagan part — and Crazytown, where the extreme stuff is,” said Tristan Harris, a former design ethicist at Google, YouTube’s parent company. “If I’m YouTube and I want you to watch more, I’m always going to steer you toward Crazytown.”

A design "ethicist"? That sounds like a LACK of an ethicist!