On the other hand, don't look at emacs as a tool on Unix, look at it as a tool like Unix... it has a few simple abstractions (text, buffers, windows) and presen

On the other hand, don't look at emacs as a tool on Unix, look at it as a tool like Unix... it has a few simple abstractions (text, buffers, windows) and presents to the User a programmable shell to act on those abstractions.