As I wrote yesterday, Facebook CEO Mark Zuckerberg has finished building Jarvis, his home AI assistant. Among other things, the system can turn lights on and off, play music based on the personal tastes of both him and wife Priscilla Chan, automatically open their front gate for friends, make toast, and even wake up their one-year-old daughter Max with Mandarin lessons.

The system was inspired by Tony Stark’s Jarvis AI, from the Iron Man movies. Stark, of course, is played by Robert Downey, Jr., and after Zuckerberg asked the public in October who should be the voice, Downey himself volunteered, saying he would “do it in a heartbeat” if actor Paul Bettany, the voice of Jarvis in the Iron Man films, got paid and the resulting money went to a charity of Benedict Cumberbatch’s choice.

But the public had other ideas. Zuck’s post inspired more than 50,000 comments, and Freeman was the overwhelming choice to replace the standard female robotic voice with which the family currently interacts.

In an interview in the spacious living room of his classic 113-year-old Palo Alto, California home last week, Zuckerberg told me that at first he had no expectation it would end up being Freeman.

It turned out, though, that soon after the public’s clamoring for Freeman, Zuckerberg saw him at the Breakthrough Awards, which earlier this month awarded $25 million for scientific achievements.

“I called him after,” Zuckerberg told me, “and I said, ‘Hey, I posted this thing, and…thousands of people want you to be the voice. Will you do it?’”