Nah, that's totally fine, i for my part tried to make a joke about tree structure in a frontend/backend router. As there are multiple branches (subtrees) derive

Nah, that's totally fine, i for my part tried to make a joke about tree structure in a frontend/backend router. As there are multiple branches (subtrees) derived from different (single linked list) paths it's not a problem to go back to a node and diverge, it does not invalidate the tree. Im sure a lot of the joke in each part is lost in niche knowledge and translation. As for manifolds, i am drawn to stuff like a hendecachoron and we have a new fountain in Chemnitz now called "Manifold" which is made from circles and i love it! Also the local architect of the town hall has the surname "Möbius". So i'll take the hint to learn a bit more about topology!