1. Game of life simulating itself
2. Lisp interpreter (in C? or in Lisp)
3. a game engine??
4. Bitcoin
5. Other distributed systems?? (Spanner?)
6. AI/deep learning representative. GPT4? AlphaGo? Pikadditions?
7. ?
- a lot of DSP stuff is pretty magical in it's various applications - digital filtering, modulation/demodulation, recovery of weak signals in noisy environments, beam-forming etc
There's a lot of really amazing, largely mathematical, foundation work that we now tend to take for granted and without which we'd be back in the relative dark ages.
