"scratching the surface"

[maddox10]

Unless the brushless motor has a very rare way of windings on the stator, it can reverse. Just switch 2 of the wires. But, it's can't reverse when it's already running. It will just keep on running in the same direction.
So, the bright spark that tries reversing a brushless motor with an extra H-bridge on 2 wires won't enjoy an instant reversing motor.

[archie2000]

so a translating spinner/melty brain cant reverse?
couldn't it get stuck in the arena walls and floor without being able to reverse very well?