I bet you could run a bruteforce search over the possibility space for equations that can be made from simple vector addition/subtraction operations within some

I bet you could run a bruteforce search over the possibility space for equations that can be made from simple vector addition/subtraction operations within some margin of error (since nothing perfectly overlaps) and look for interesting candidates manually post-hoc. Really, there's a lot of \approx going on here -- you have thresholds for distance inside your vector space. Not only that, this shows that he cherrypicked "great" examples.