On 30/06/2018 04:15, Jeff wrote:

He actually said originally that it changes by less than 1% and it turns
out that he was correct about that and it is now clear that the distance
between the axle and the road changes by much more than that, 3 times
more in fact, at least with that particular car and those tyre pressures.

There have been a lot of posts where he and his supporters have said it
doesn't change, some where they have defined it as not changing as
though they think it doesn't obey the laws of physics.

Also there hasn't been any proof that it changes by less than 1% on a
flat tyre. We do know that some TPMS can detect a very small change when
the pressure drops from 39 to about 31 on one car from measurements done.