When Goku was a child, falling and hitting his head erased his memory and completely changed his life. What would have happened if instead of making him forget, that incident had made him much smarter than he was? Meet a new Goku - who's much more clever, has a taste for philosophy, and a bit of a dark side... A 'rational' Dragon Ball fanfiction, inspired by HPMOR!

Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.