Comment by KeplerBoy

I love 3b1b as much as the next guy, but let's not overstate its meaningfulness.

It's definitely one of the best learning resources on the topics it covers, but I'd say the actual textbooks are a more valuable resource. After all his most timeless videos cover traditional calculus and linear algebra. Stuff you'd find explained in a more rigorous and confusing fashion in every tech undergrad curriculum.

Also I'd be more concerned with mechanical engineering over CNNs in times of rebuilding civilization.