When Mark Zuckerberg planned his Facebook 'Ask Me Anything' session, he probably wasn't expecting to be put on the spot by the world's most famous physicist and the 'Terminator'.
Zuckerberg, in a Facebook post, said he will take questions from people for an hour to understand what the "community is thinking about." The question and answer session was in AMA format on Zuckerberg's timeline.
Within minutes of the session, Stephen Hawking and Arnold Schwarzenegger popped in with questions of their own.
Hawking, noting his own interest in a unified theory of gravity, asked, "Which of the big questions in science would you like to know the answer to and why?"
The CEO called it a 'good question' and said he is "most interested in questions about people."
"I'm most interested in questions about people. What will enable us to live forever? How do we cure all diseases? How does the brain work? How does learning work and how we can empower humans to learn a million times more? I'm also curious about whether there is a fundamental mathematical law underlying human social relationships that governs the balance of who and what we all care about. I bet there is," he said.
Next it was 'Terminator' Arnold Schwarzenegger's turn. Schwarzenegger was interested to know about Zuckerberg's workout regime.
Schwarzenegger asked, "Mark, I always tell people that nobody is too busy to exercise, especially if Popes and Presidents find time. You've got to be one of the busiest guys on the planet, and younger generations can probably relate to you more than they can the Pope - so tell me how you find time to train and what is your regimen like?
Zuckerberg said he works out at least three times a week.
There were some other questions for the Facebook boss too.
Why did he invent 'poking'?
Why should we use 'real names' on Facebook?
Zuckerberg also has the most amazing response to a user who asked him how he'd react if he woke up next morning "and there is no Facebook?"
"I'd build it," the Facebook CEO told Aakash Chaudhary.
You can read all the answers to the AMA here.
Here are a few highlights from Mark Zuckerberg’s Facebook Q&A:
Next for Facebook: Telepathy
Zuckerberg believes that one day we'll be able to directly share emotions, thoughts, and sensory feedback with each other, just as we currently share text, photos, and videos through social networks. "You'll be able to think of something and your friends will immediately be able to experience it too," he said in one of the comments.
Why did he choose to set his salary at $1?
To this question, Zuckerberg said, "I've made enough money. At this point, I'm just focused on making sure I do the most possible good with what I have. The main way I can help is through Facebook -- giving people the power to share and connecting the world. I'm also focusing on my education and health philanthropy work outside of Facebook as well. Too many people die unnecessarily and don't get the opportunities they deserve. There are lots of things in the world that need to get fixed and I'm just lucky to have the chance to work on fixing some of them."
What's happiness for the Facebook CEO?
"Happiness is doing something meaningful that helps people and that I believe in with people I love. I think lots of people confuse happiness with fun. I don't believe it is possible to have fun every day. But I do believe it is possible to do something meaningful that helps people people every day. As I've grown up, I've gained more appreciation for my close relationships -- my wife, my partners at work, my close friends. Nobody builds something by themselves. Long term relationships are very important," Zuckerberg said in his response.