Math skills had never anything to do with arithmetic. Maybe Ramanujan discovered a couple of theorems by dealing with numbers themselves. That is it.

Online discourse though is collapsing under dumb AI talking points.

Man, Usenet had the best online discourse - hardly any angry personal flaming because people dared to disagree. And Twitter, wow that was just pure rationality. slashdot - practically a masters program.

Now, they all did have gems of interaction that would could find by sifting thru the dumb stuff, but I find that property of discourse to be pretty steady. I've even found some interesting comments on YouTube videos and newpaper websites.