I keep seeing Unlambda (and co.) in literature here and there. It's sort of surprising to see an esolang show up in computer science theory. It's fitting at the

I keep seeing Unlambda (and co.) in literature here and there. It's sort of surprising to see an esolang show up in computer science theory. It's fitting at the same time. I was on the mailing list, and I can tell you the people who come up with these are incredibly brilliant—even when they're producing nonsense languages or incomprehensible ones with little if any research value, it's the product of a greater than average insight trying to construct a Dalí or an Escher in computational terms. (Needless to say, I wasn't one of the greats. I was mostly there to pester everyone and generally be a nuisance. I've learned a lot from that experience and you can probably tell I'm grateful for it. Most importantly, I'd learned to think differently, that there's always another computational model just outside of peripheral vision.)