User blog comment:DYBAD/Character Sheet/@comment-26322734-20150701020834/@comment-4867780-20150701051755

Exclusivity in this context has a collective meaning, refering to the Selforge society as opposed the untold infinities lying beyond the plane's boundaries. You could compare it to the concept of "chosen people" except with a much realer, closer and more personal touch.

When something feels good enough you don't tire of it, especially when the person is so very skilled and adaptable ;) (see the last paragraph of the "Attitude" section in Personal Data). But it's true the psychic penomenon we called "acquired tolerance" is the worst ennemy of long-term happiness.

That's why it is removed during citizens' Personal Enhancements, allowing them to keep enjoying every experience like it was the first time despite their unlimited lifespan (it plays a necessary role in real life, but is just a party pooper in a Selforge context).