Elementary mathematics is not invalidated by calculus, unless you had a really bad teacher. I'd say same with Newtonian and 20th century physics. Newtonian phy

Elementary mathematics is not invalidated by calculus, unless you had a really bad teacher. I'd say same with Newtonian and 20th century physics. Newtonian physics _is_ a proper mathematical model for large masses slow speeds, unless you need astronomically high precision. If you are calculating calories you spent on a treadmill, there is no need in knowing the speed of light. With social sciences, this is completely different. A lot of knowledge there is de facto just-so story: https://en.wikipedia.org/wiki/Replication_crisis https://en.wikipedia.org/wiki/Replication_crisis