Facebook CEO Mark Zuckerberg is doing a live Q&A right now.

Starting at 3:35 p.m. Pacific, Zuckerberg began taking questions, encouraging users to post in the comments thread of his post and promising to “get through as many as I can in the next hour.”

“We’ve held a few townhall Q&As over the past few months,” Zuckerberg wrote, “and I thought doing a Q&A right here on Facebook would be valuable so more people can participate.”

The problem, of course, is that there will no doubt be thousands of questions asked, so it will be interesting to see which queries Zuckerberg answers.