I have trouble imagining a comeback because Forth's unique value is in staking out the tiny-and-simple end of the efficiency frontier. But Lisp is almost as sim

I have trouble imagining a comeback because Forth's unique value is in staking out the tiny-and-simple end of the efficiency frontier. But Lisp is almost as simple if you can spare more resources, while if you're OK with complexity there are compilers that optimize better. It'd be nice to be wrong, since I'd love to work in a system where every bit is handcrafted and known to me. I didn't quite get there back in the 80s in my summer job at FORTH, Inc. but it did teach me a bunch and I enjoyed scrounging out a few bytes here and there.