Hacker News story: If you had no concern about market fit and funding, what would you work on?

If you had no concern about market fit and funding, what would you work on?
Let's assume that finding funding is not and issue and you don't need to worry about the current state of the market in terms of existence of a stable customer base or availability of certain goods (e.g. if you'd need thousands of H100 GPUs, you'd find it). The only limitation (and this is probably open to interpretation) is that it should significantly enhance the human civilization in one or multiple domains (so things like rendering Mandelbrot set infinitely faster does not cut it IMO :) 0 comments on Hacker News.
Let's assume that finding funding is not and issue and you don't need to worry about the current state of the market in terms of existence of a stable customer base or availability of certain goods (e.g. if you'd need thousands of H100 GPUs, you'd find it). The only limitation (and this is probably open to interpretation) is that it should significantly enhance the human civilization in one or multiple domains (so things like rendering Mandelbrot set infinitely faster does not cut it IMO :)