Seb is incredibly passionate about games and graphics programming. You can find old posts of his on various forums, talking about tricks for programming the PS2, PS3, Xbox 360, etc etc. He regularly posts demos he's working on, progress clips of various engines, etc, on twitter, after staying in the same area for 3 decades.

I wish I still had this level of motivation :)

> I wish I still had this level of motivation :)

It's rather: can you find a company that pays you for having and extending this arcane knowledge (and even writing about it)?

Even if your job involves such topics, a lot of jobs that require this knowledge are rather "political" like getting the company's wishes into official standards.