nope
he means vary the range from 70 down to 0 carbs. Carb timing/manipulation is essential imo. For instance, all carbs after weight training, or some before/some after, etc... You can cycle it on a daily basis as well. Say Monday you hit chest/back, have carbs before the workout and after, then don't consume anymore until the following days cardio session has been complete. You get some added benefit of restoring some muscle glycogen/fighting cortisol release, and then you blood sugar will be low enough by the following day that you will burn up fat substrates during your cardio session more efficiently.