“Progressives’ mobilization delusion” [Matt Yglesias, Slow Boring]. “One of the biggest problems with mobilization theory is that in politics (and also other spheres of life), there are a lot of opportunists. And by moving from a straightforward question like ‘is this popular?’ to something harder to measure like ‘does this mobilize voters?’ a lot of people who have specific agendas can make up hazy reasons why you need to prioritize their issues.”