lisp

Common Lisp is frozen at its core. Scheme is too theoretical. Arc, the 100-year language, I'm sure will be useful in 100 years. What's a Lisp programmer to do?

We don't need a thinker! We need a doer! Someone who will act without considering the consequences! -- Homer Simpson

I want to make my own Lisp, with one requirement: it should be nice to use.

M-x ielm

This brings up a dedicated interactive Emacs Lisp REPL, a bit like the one that SLIME provides for Common Lisp. It's a crap-load easier than doing C-x C-e or C-j on things and peering at the mini-buffer output.

Like SLIME's REPL, pressing M-p will go back in history, and M-n forward. The mode works just fine with paredit mode, which I personally love. Handy!