Ugh.
Technically, the terms of the agreement would be me allowing you to be happily ignorant. If Eric was talking about a ton of mass in his slide he was being colloquial. A ton is a measure of weight, never of mass, and a ton is 2000 lbs not 64000 lbs. I cannot make that any clearer and if you persist in asserting that a ton is 64000 lbs, then you are a fool.