I think the total number of jobs (programming + other) that humans can do economically might go down over time. Programmers can usually pickup the next ambitio

I think the total number of jobs (programming + other) that humans can do economically might go down over time. Programmers can usually pickup the next ambitious project (e.g. a sales bot) when the old domain is no longer profitable. I think Bartosz is saying that Math and Category theory is useful to learn because it works in a number of subdomains. It can help keep the domain switching cost down somewhat.