If we agree that the Kingdom of Science found Byakuya petrified at the end.

That means travel time was created. That means Senku certainly worked on it all his life (at least a big part). That means this boy will not have a "normal life", I know science, researches are his fav parts, but did he really spent time with last moment of his father ? Or he deeply sink into his time travel engine works ?

Circle of life : Byakuya spent his life for Senku and Senku did the same for his father.