Snippet of an overheard conversation today:

"LOL maths beyond basic arithmetic is so dumb. No-one needs pythagoras, trig, calculus or any of that crap unless they have some unholy desire to find the geometric properties of their sandwich."

"What do you want to do when you leave school then?"

"Something to do with AI. That stuff is really cool."

🤦‍♂️🤦‍♂️🤦‍♂️

The Pythagorean theorem is pretty important. You should be able to represent it graphically because it shows that you are a thinking creature to the point of math.

Works also if you have no other common basis for communication, not even mimics. That might well save you from a live autopsy in case you get abducted by aliens because it would make them curious.

On science and religion. Inspied by a comment in another rant, credits to @Commodore and @cjbatz

According to Godel's incompletness theorems, aritmetics is incomplete and inconsistent. Therefore, any science based on aritmetics (dude, like, every) is also.
Therfore, as a mathematician, I must accept that there are things that cannot be proven by current science, and that there are statements that are true and false at the same time in current science.

So, science can't prove religious beliefs? It cant prove P vs NP either. It might someday. Science couldn't prove earth wasn't flat for a looong time. Or Pythagoras theorem.
But more importantly, if science can prove something, doesn't mean it can't prove the exact oposite.

This way of thinking allows for any and all ridiculous beliefs, under the shield of "it might be proven one day" or "doent't mean opposite isn't true also" but kerp in mind that there are complete and consistent sciences and proofs in them. Check if something's been proven to exist or not exist without doubt.