I read this and failed to find an answer to the rhetorical title. I got a lot of why "a particular operation on a particular operating system compounded to crea

I read this and failed to find an answer to the rhetorical title. I got a lot of why "a particular operation on a particular operating system compounded to create a very suboptimal scenario." But there was no redux tl;dr that basically gave me a unified field theory about why modern software is slow. I agree that it often is, but this didn't further the fundamental praxis about why it often happens. Just ranted about a symptom. Did I miss a gem buried in there?