When you hear the term “Mad Scientist,” what do you think? Personally, I think of “Pinky and the Brain,” the genetically enhanced laboratory mice who are constantly scheming about the best way to take over the world. This week we had the chance to interview five mad scientists. Chances are they’re each trying to take over the world in their own way, but you’ll have to check out the interviews and make your own conclusions.

We interviewed founder of Second Life and co-founder of Coffee & Power Philip Rosedale, co-founder of LeapMotion David Holz, founder of GreenGoose Brian Krejcarek, founder of Station X Richard Goold, and finally founder of Lytro Ren Ng.

[Illustration by Hallie Bateman]