User blog comment:Master Sima Yi/Assassinews 02-03-'12 — Leaked AC3 info!/@comment-3519940-20120305024018/@comment-150.199.20.130-20120306153643

No everyone has it because the ones who came before created the humans so all of them have it and then they started breeding with humans and some people can unlock this ability faster than others (hint hint Assassins hint hint)