Back when the discussion was about the validity of treadmill tests, humber posted a lot of incoherent math. He made several attempts to show that the cart on a treadmill in still air wasn't equivalent to the cart on the stationary road with the wind blowing. For some reason, when changing frames of reference, he just couldn't get a handle on the idea that he add to add the same value to all velocities. He'd neglect to do that for some value, then say, "See, it's different! The treadmill's not equivalent."
So I find it quite ironic that he blathers about "math" when he's incapable of applying it correctly himself.