(the worst part of ML is that it is now difficult to search for things about locomotive trains ... fortunately one of the searches reminded me that it was
subways and not trains...)
A Subway Named Turing - https://community.fortunecity.ws/underworld/continue/56/subw...
(which is referenced from another HN post that incidentally is from the same site - though different page)
Computational Duplo train track layouts - https://news.ycombinator.com/item?id=17772292 (215 points, 19 comments)
