High profile business leaders in social media, film, transportation, hospitality, entertainment and other fields--along with political figures and professional athletes--use this time to exchange ideas, hammer out deals and discuss potential mergers and acquisitions.
Facebook founder Mark Zuckerberg is known for setting random personal challenges for himself and successfully completing them. Last year, for example, he pledged to master Mandarine Chinese.
This year, the 27-year-old CEO has one-upped himself by vowing to only consume meat in which he's killed himself.