We've all heard of Elon Musk and his stunning developments in private space travel with SpaceX and alternative vehicles  via Tesla Motors (NASDAQ:TSLA) electric cars. And most of us know Jeff Bezos is the guy behind that mega online marketplace Amazon.com (NASDAQ:AMZN).

But what about Bre Pettis? Heard of him? How about Amit Goffer? No? Well, it's time you met them, courtesy of the fine folks over at InfographicWorld.com, who have put together the following to get you up to speed on the biggest thinkers of 2013, across the cultural, media and business worlds.

Biggest Thinkers of 2013 [infographic]