this has nothing to do with neurodivergence. it's just how brains work. necessarily, in fact. your dad's just an idiot.

by the way it's not the same thing but one thing I enjoyed doing when i was younger and talked with my dad for long enough, we would stop at a point and think "wait how did we even get here?" and trace back the conversation to several topics ago.

we both have diverse interests, maybe that's why things we talked about would keep chaining to random other things. now that i think of it, my dad used to buy lots of encyclopedias before the internet, and we'd just randomly browse them. even on our computer we had multiple versions of Encarta. and now we use wikipedia and it's so easy to jump from one article to another.

so i guess what we did all those years ago wasn't far off from wiki surfing verbally.