> Philosophy is what academics who work in philosophy departments do.
IMO this is too restrictive. You reduce philosophy to a job title or diploma title. I guess, many philosophers would not agree with this definition.
> I make a strong counterclaim: all progress in philosophy comes from progress in the hard sciences.
I agree that new knowledge and new abilities lead to new ideas and questions and concerns. But philosophy is not limited to physics or chemistry; IMO the only hard sciences.
Physics and chemistry are hard sections within an open ended spectrum:
- The begin (1D view) or lower level layer (3D view) are unknown. Is string theory correct ? What are strings made of ? Is mental conscious the lower layer ? Is all a simulation ?
- The end (1D view) or upper layer (3D view) are soft science. Like biology, sociology, psychology, economics.
Regarding economics: Yanis Varoufakis: Live at Politics and Prose https://www.youtube.com/watch?v=H38tZhPying&t=377