This article is quite confusing, I'm really not sure which point the author tries to make. Anyway, reading on to the implementation section, this stuff sounds

This article is quite confusing, I'm really not sure which point the author tries to make. Anyway, reading on to the implementation section, this stuff sounds pretty standard, and people have been doing this for many years. Some implementation details changed (pushState, hashchange, etc), but this approach is ancient. I mean, if you just want to describe a simple technique, there's no need write a long, vague and controversial introduction..