[Gaz64]

A wheel loses traction, it's wheel speed goes up, and in a split second decision, engine power is reduced with less ignition timing, less fuel injector pulse width, less throttle angle, in a combination of these.

Faster than any human can.

I don't know why we are worried about energy lost to friction on a slide, when it barely happens with traction control enabled, compared to the losses that DO occur without traction control.