(It has been unclear from your posts whether you actively recommend The Expanse or just really loved the physics and the third season.)

I actually do really recommend it! I think in terms of technical quality it might be the best sci-fi show I've ever seen. It's certainly the smartest. It occasionally misses the mark for me, sometimes in emotional ways and sometimes in ways that I think are objective issues, but on the whole it hits much more than it misses, and I think I'd recommend it to people across the board, at least if they're not too offput by a certain level of gore and darkness.