The initial conditions are all stationary, and it's in the plane exploiting symmetry, so they are just 2 real numbers. They don't evolve the simulation very lo

The initial conditions are all stationary, and it's in the plane exploiting symmetry, so they are just 2 real numbers. They don't evolve the simulation very long and the errors rapidly increase with time. See Figure 3 for typical errors of about 20% on the validation set with clear signs of overfitting. https://arxiv.org/pdf/1910.07291.pdf https://arxiv.org/pdf/1910.07291.pdf