Very good question @Taut. I believe personally that there may be a lot of moon or even dwarf-planet sized objects in the KB. However, don't call them anything but Kuiper Belt objects or Neil DeGrasse Tyson might get upset :) Actually I think he is wrong in being so conclusive of the statements he made regarding anything out that far as only being KB objects. I usually like him, but when he tries to write the rules himself it irritates me. It would be nice to know if Triton did come from the KB. It would clue us into the possibilities that other larger bodies might be cruising around out there.