Laplace Factor

The Laplace factor in Mushoku Tensei is a trait that some people are born with; Rudeus, Sylphiette etc. People born with it have increased magic potential, allowing them to reach amounts of magic prowess that wouldn't be possible with normal humans. This trait can also sometimes cause babies to be born with Emerald green hair (such as the case with Sylphiette), just like Laplace. Strangely, people born with it can't wear fighting spirit (Touki) to reinforce their bodies.