And Milner says the process of trying to find that life will be valuable, no matter what it finds: "Let's do a scientific experiment instead of having these debates, let's just do a rigorous experiment and let's find out," says Milner. "Now it is very possible for us to attack this question with given with the technology that we have. We only need to take the existing radio telescopes and connect them to the largest computers that we have and we can process data thousand times faster than any previous search."
Another topic that Milner is eager to bet on: Artificial Intelligence. He thinks that it'll be a game changer for companies, not the threat that Elon Musk thinks it'll be. "I think it's not going to play out the way [Musk] thinks it's going to play out. What we have seen in the last few years is that it's collaborative engagement between human minds and computers. If you look at Google, Google is a combination of a lot of servers and a lot of human minds. Who is entering all this data into Google? Who is feeding the machine? This is human brains so there are few million people that are feeding the machine, and then the machine is processing the information and making us smarter."
That combination of technology and humans is one reason he's so bullish on Facebook: "It's a billion people voluntarily entering information, computers have a chance to process this data, and makes us more efficient. So I think if the histories of any lesson to be drawn for the future, the future belongs to a combination of human brains and computers and I don't think it's a threat. I think it's it's an opportunity."
Read MoreHawking, Musk warn of 'inevitable' AI arms race