> the constraint efficiency of game developers: 16 ms window to do all your processing
This is the only one that really matters. It also implies a complete redesign of how "responsiveness" is handled, because the usual failure mode of slow GUIs is to get blocked on a whole cascade of updates which have to be done in series. Immediate mode GUIs are a lot better for this because the programmer knows that they can't call out to get some data; you render what you're given, either it's arrived on this frame or it hasn't.
When you see how slow modern CLI tools can be, you don't need all this technology. Just think of respecting human time. The only true currency of life until we invent immortality.
1. RIIR -- for native code execution performance, and correctness
2. async rust preferably -- green threads for efficient cpu usage
3. the constraint efficiency of game developers: 16 ms window to do all your processing
4. data structures sized to fit cache lines
5. vulkan/metal rendering pipeline
oh my
(edit: formatting)