You obviously don't buy into the whole idea of the subconscious. If you have to explain it FOR it to work then yes it has most likely failed. But whether or not

You obviously don't buy into the whole idea of the subconscious. If you have to explain it FOR it to work then yes it has most likely failed. But whether or not you have to (or even can) explain WHY it works is a whole different thing. BTW I'm not sticking up for the ad. I doesn't do anything for me.