Zuckerberg's TechCrunch appearance was quite a reversal from last year, when he used the event to mount a defense of Facebook and his roadmap for building a profitable company.
Zuckerberg's plan to connect the world
Zuckerberg took the same stage with ease this time around, using the platform to explain some of his vision for Facebook, which now has more than 1 billion active users.
"Connecting the next five billion people is going to be harder because they may not have Internet connections," Zuckerberg said, alluding to his latest campaign, internet.org, aimed at bringing Internet to the masses.
Zuckerberg says he's also continuing to challenge himself -- part of a yearly exercise aimed at helping sustain motivation. In the past, he's started to learn Chinese and changed his eating habits.
"The point of these [challenges] is really you get perspective for building things by living in different worlds," Zuckerberg said.
This year, the notoriously introverted founder committed to connecting people online is challenging himself offline to meet a new person every day.