Alternator question

he said i can run forever as long as the car is running. (without using an alternator). as long as my headlights arent on.
and all i need the alternator for is headlights, a/c and other accessories and an initial kick to start the car (which is what the starter and battery are for - or so i thought)

OK, had to make sure....He is wrong. I'll wait for the 1 post new screen name to defend himself. He may be real smart though, cuz I'd say that and follow you for about an hour and yell out my window.....Ass Grass or cash nobody rides for free!