Are they still doing gain-of-function research on viruses?
That's the thing here: he has it running for hours presumably without any ball jumping out.
Most of the tracks consist of two rails, so the ball has two contact points. I'm no physicist but it seems like the goal would be to have ideally nearly equal forces at the two contact points at all times during the ball's descent. In other words, the track has to be perfectly banked so that the gravity and centripetal acceleration vector are balanced by a normal vector perpendicular to the rails. During a derailment, the ball has to lift away from one of the two contact points, so the normal force must have dropped to zero.
Dead Comment
I can do this and still start off by assuming the corporation is in the wrong. The tendency to optimize for profits at the expense of everything else, to ignore all negative externalities is inherent to all American corporations.