Originally Posted by
Null66
Makes no sense on a bike.
In a car the computer knows engine speed, torque, requested acceleration.
Your legs are nothing like a engine, power varies at the same cadence... Sometimes it's better to pedal harder and slower, and others faster and lighter for the same output, based on how your feeling at the time...
Well, that's why the guy didn't say the automatic is based on a desired cadence only but through some sort of analysis based on your historical power data. There are a lot of hand-waving there, though, and I would think there are probably a lot of kinks still to be worked out.