The pair-sorting in Pseudonym Pairs complete, scales to a population up to 2^256 people, each person pays the GAS cost themselves, very low cost, a few cent, around 100000 GAS so that is 0.2 dollars, very cheap per person, while a significant price for the population as a whole, with current technology around 1 billion dollars per event to administrate the logistics (that will go down in price with next generation state technology), possibly worth it because it is a very valuable institution since it provides global personhood, as a base layer for the web3.
