Naveen Jain

I started off with a company, InfoSpace, with my own funding. The company was listed among the most successful companies and I went on to start Intelius and Moon Express. Now, I focus my time on using the skills of an entrepreneur to solve many of the grand challenges facing us in the areas of education, healthcare, clean water and energy.

How important is failure - yes, failure - to the health of a thriving, innovative business? So important that Ratan Tata, chairman of India's largest corporation, gives an annual award to the employee who comes up with the best idea that failed.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

I'm no longer just a candidate. I'm the President. I know what it means to send young Americans into battle, for I have held in my arms the mothers and fathers of those who didn't return. I've shared the pain of families who've lost their homes, and the frustration of workers who've lost their jobs.