Mark Zuckerberg, cofounder of Facebook, recently held a Q&A session over the social network to find out what is on the community’s mind. Top names such as Stephen Hawking, Arnold Schwarzenegger and Arianna Huffington joined in on the conversation, and while questions ranged from salary, working out and happiness, others provided insight into the company’s ongoing initiatives.

One user asked to hear more about the company’s artificial intelligence plans.

“Most of our AI research is focused on understanding the meaning of what people share,” Zuckerberg responded. “For example, if you take a photo that has a friend in it, then we should make sure that friend sees it. If you take a photo of a dog or write a post about politics, we should understand that so we can show that post and help you connect to people who like dogs and politics.”

(Related: John Carmack’s work for Oculus, the company behind Facebook’s VR plans)

He also mentioned Facebook is working on building vision systems, and translating speech to text between any language.

In addition, Zuckerberg revealed the company is working on virtual-reality systems because he believes it is the next big thing in computing and communication. “In the future we’ll probably still carry phones in our pockets, but I think we’ll also have glasses on our faces that can help us out throughout the day and give us the ability to share our experiences with those we love in completely immersive and new ways that aren’t possible today,” he said.

The full Q&A is available here.