On: Mitsubishi robot solves Rubik's Cube in 0.305s

[nullc]

I noticed their solution used a fair number of concurrent opposing side rotations. I don't think these moves are very common unless you specifically optimize for it?

[kuboble → nullc]

I think they are quite common.

If you have a random sequence of moves then after each move you have 1/5 chance of turning the opposite face. So the fact that in 16 moves sequence they had it twice is roughly expected even if they didn't optimize for it