Why mathematicians are three points? I think it is easier to disable a mathematician. Look at this discussion, for example. EE engineers and physicists are dismissing the problem outright, while mathematicians have no issues thinking about it.

-Why mathematicians are three points?

Possibly based on this ranking. Everything sub-mathematician is 2 points? Maybe there's subdivision of points.

https://xkcd.com/435/

See alsoer https://youtu.be/zJOS0sV2a24?t=932