SF writer personality test, and Snape fandom

I have no idea who this is at all. Steve got Octavia Butler *sulk* I love Butler.

I am: Hal Clement (Harry C. Stubbs) A quiet and underrated master of "hard science" fiction who, among other things, foresaw integrated circuits back in the 1940s.

Which science fiction writer are you?

Interesting Snape fansite with essays on why he didn't murder Dumbledore: I Trust Snape