Finally, I just finished @pluralistic's Radicalized novella.
There is a physical copy floating around the house, but at a little over two hours, I finished it in one commute and a lunch break by listening to the audiobook.
Radicalized is a kick to the groin. Doctorow does a good job of explaining how radicalization on the Internet works and exposes one -- of many -- cracks in our increasingly tense and tenuous connections in the US that can be broken apart by it.