I find it interesting that some things are visible if the trajectories are turned off that I would never see with them turned on. For example, if the last exam

I find it interesting that some things are visible if the trajectories are turned off that I would never see with them turned on. For example, if the last example (10 on an octagram) is viewed with trajectories off, I see two rotating intersecting pentagons, and I missed this completely with traj on. Similarly, with 8 on a (9/4) enneagram, I see two non-intersecting rotating squares. Nice.