Archmage of Dimensions

After dying, William was reborn in the year 1971. Leading the life of a genius and making himself wealthy using his knowledge of the future, he was ready to retire at the age of 20 and spend the rest of his life in leisure. That was until he saw the boy who lived in the zoo and realized he was in a fictional world known as Harry Potter, and worst of all, he was a muggle! Was he going to give up on magic? Of course not! He just had to find a way to become a wizard, no matter what. After all, nothing is impossible with science and magic on one's side. ------ Eventual Multiverse travel. HIATUS! ----- If you are looking for a super genius MC that fuses science and magic to become super strong without cheats, look no more. :)