I was expecting to see a comparison between stateful object and server and method calling as message passing and api call. So I was surprised but also disappoi

I was expecting to see a comparison between stateful object and server and method calling as message passing and api call. So I was surprised but also disappointed: to anyone who has worked with a REPL for instance it's not a big deal to hot swap piece of code. Many programmers use Emacs and do that almost daily in their text editor… And that's how the web was first designed (the first web browser, Mosaic, allowed to edit the page you were visiting, much like giant and distributed wikis or, with nowadays dynamism in web pages and services, much like giant and distributed Lisp machines or Smalltalk images).