I would add the pervasive documentation built into the system for every function and variable, and the ability to find the source for any function instantly. Th

I would add the pervasive documentation built into the system for every function and variable, and the ability to find the source for any function instantly. The whole Lisp machine heritage is totally optimized for “developer experience” and helps the user of the system ease into hacking on the system. Also the highly imperative Logo-like model of coding is, though kind of clunky at times, also extremely intuitive and straightforward. Your programs often work the same way you work: go to the other buffer, search forward for a regexp, kill the line, go back to the beginning, and so on, just like “editor macros.” So there’s no funky abstraction frameworks with models and controllers and whatnot, just buffers with cursors basically.