Thread:Omega64/@comment-4503935-20190703001710/@comment-10330822-20200321205305

Its also possible Luffy is a reincarnation of Joy Boy or something. Based on that Raftel chapter.

Roger made it seem like Poisedon and Joy Boy are set. That's why he asked when Poseidon would be born and then made it seem like "their era" is 20 years in the future. Implying that wherever Poseidon is Joy Boy will be. As a result, Luffy and Shirahoshi are very close in age. It fits in with the walking theory that Luffy has some kind of special quality about him, like his Haki makes him a breed apart and probably contributes to his insane luck. Hawkins also implied that with his cards, that no matter what happens to Luffy, his odds of survival can never be zero.