[lariati]

I have listened to François Chollet say that all intelligence is specialized intelligence.

I suspect the question really doesn't make sense if that is true.

We just have this bias/mind projection fallacy that intelligence is a general physical property of the brain that can be measured. I just suspect this is not true.

Like athletic ability doesn't generalize well. Of course, someone not athletic at all is never going to be a great athlete in anything but it makes no sense to compare Lance Armstrong to Patrick Mahomes in some general athletic context. Putting a number on a general athletic ability index between the two would just be total nonsense.