Many of the instabilities you see in his sims are familiar from everyday observation, like mixing cream into coffee. See for example, the following two which ar

Many of the instabilities you see in his sims are familiar from everyday observation, like mixing cream into coffee. See for example, the following two which are the most familiar: https://en.wikipedia.org/wiki/Rayleigh%E2%80%93Taylor_instability https://en.wikipedia.org/wiki/Rayleigh%E2%80%93Taylor_instab... https://en.wikipedia.org/wiki/Kelvin%E2%80%93Helmholtz_instability https://en.wikipedia.org/wiki/Kelvin%E2%80%93Helmholtz_insta...