Right, but fundamentally Lattice Boltzmann is just an optimization on top of lattice gas automata. It's continuum-ing up from a CA rather than discretizing down from Navier-Stokes.
And the Galilean invariance thing is kinda cool: who knew that you didn't need something as fundamental as Galilean invariance?
And the Galilean invariance thing is kinda cool: who knew that you didn't need something as fundamental as Galilean invariance?