# Hello This is the personal website of [Niels G. W. Serup](/about/niels). **Here's a riddle:** - What's the difference between a person *X* who studies the [279 Thule asteroid](https://en.wikipedia.org/wiki/279_Thule) and a person *Y* who destroys it? - X is thoughtful. Y just fought Thule. **(It's a pun.)**