@MartinBüttner I've got a working solution to the count up challenge in hexagony but it's... rather long. I don't have time to golf it right now but if you have any ideas, I'd be glad to hear them :)
a side-length 3 one might exist, but I doubt a human will find it. some clever search might be able to find it though. it's definitely too large a search space for brute force though.
Esoteric means that it would only be understood by a select group of people, so I'd say that's true now, but who knows, maybe stack based languages will be mainstream by 2042 :P
Hmm, feels like you might get messed up, maybe? It was hard to get the IP to get back around to the middle row and then having instructions not to skip when it was supposed to be done.
But you're right that it did feel golfable, I almost posted it in this room with the ; in front of the < which left the whole bottom blank, but then I realized it was printing some unprintables :P