You seem to know a thing or two. Could you point me to an intro for material/physics simulation? Keywords and such? Some basic ideas or even tutorials how this is approached and the common pitfalls?

Is water simulated like gas, sand, or spaghetti? Are internal grid configuration and electromagnetic properties considered usually? Water's chemistry and physics makes it such a special thing, no? What's the scale when things commonly fall apart? Is quantum computation a possible answer to scalability? Can you "divide and conquer" a fluid system? Do real life model measurements tell you much about upscaled applications?

I only know people hate fluid dynamics studying physics and that it's a hard problem.