[MalcolmS]

It's interesting they are using nuclear particle algebraic multiplication table entires to deduce behavior of intergalactic systems.

Given the computation power required to do this given lightspeed delay of gravitional effects simulating the motion of galactic bodies, I believe that this calculation is done assuming instantaneous gravitational effects!! Someone correct me if I am wrong.

[RightWhale]

Algebraic multiplication turns out to be nothing more than symmetry operations, all of them rotation pairs, or you could say reflections. Translation can be taken as rotation about an infinitely distant axis as Rodriguez pointed out. This implies that there is only one particle and the variety we measure is only properties of the one particle. Therefore, calculations take no time at all, although in the model some CPU time is burned every time you do anything or even run a timing no-op.