This paper didn't seem to deal specifically with compilers, editors, browsers, or intellisense. But I'm curious what counts as "modern" -- how often should I r

This paper didn't seem to deal specifically with compilers, editors, browsers, or intellisense. But I'm curious what counts as "modern" -- how often should I replace my personal machine, or what should its specs be, so people like you don't call it "ancient"? (I already know that I should be using LightTable or Atom or IntelliJ to be "modern" in terms of editors.)