There is a big difference between a blog post and a scientific article. A blog post should be expected to popularize a topic and reach a wider audience. You al

There is a big difference between a blog post and a scientific article. A blog post should be expected to popularize a topic and reach a wider audience. You also seem to be quite unfamiliar with breadth of the topic of mathematics. It is quite possible to take a mathematics phd without touching differential equations, except as an undergrad. BTW, implying that people don't deserve their job is just shitty behaviour, and way out of line.