Sure, mainly I mean like, "Lisp's feature X enabled us to do thing Y that we couldn't do in other languages which let us make baller software Z". I think other

Sure, mainly I mean like, "Lisp's feature X enabled us to do thing Y that we couldn't do in other languages which let us make baller software Z". I think other languages arguably have this stuff: C/C++/Rust have direct hardware access and speed, JavaScript has the browser, etc. It's a little hard for me to pick out exactly what makes Allegro CL [0] good at the AI thing. They do say you can also write rules in Prolog, which makes me think the advantage isn't down to Lisp but rather the library code they wrote on top of it. > Other incredible software has a very specific type of draw which doesn't work for everyone. Examples would be Guix and Emacs. Yeah, maybe this is one. I almost listed Emacs, but I'm a little torn (also a Vim user so don't trust me here haha). Lisp is inextricable from Emacs, but I'm not familiar enough to say whether or not you would have an appreciably harder time writing an equivalent app in, say, Lua. Maybe! Maybe live reload is core to the experience, etc. Like I said I'm not super familiar. So yeah, I should clarify that I don't think the software needs to take over the world to meet my criteria here. I think niche software can totally qualify; in fact I think it's more likely to qualify. Basically it's "we wrote a unique, useful program in Lisp that we really couldn't have written in a different language." Does Emacs fit the bill here? Maybe, but I kind of doubt it. [0]: https://franz.com/products/allegrocl/ https://franz.com/products/allegrocl/