Tcl is an alien technology I wish I embraced when I was first exposed to it. I didn't quite get it, I was confused, so I gravitated towards Perl because it reminded me of C somewhat. I wasn't aware of my cognitive blind spots. In many ways Tcl is more powerful than most implementations of Lisp. Like a Lisp crossed with a Forth with the ability to turn spheres inside out with no tearing during execution. Magic.