@victoria - I want to take some more time to think about what you said and actually come up with a satisfying response but two things that ump to mind immediately are:
1. "cannot not" is that a tyop or am I misreading?
2. Honestly I can think of Nepeta doing both at once and that has given me ideas on what to do if I ever write her.
3. "in homestuck, black holes are non-literal thresholds between worlds." - it's funny the similarities and differences between how Problem Sleuth and Homestuck handle black holes lol.