Today we're having our 50th hackathon at Facebook.
Hackathons are an important part of how we come up with new ideas. Everyone takes a day to explore any idea they want, and then everyone presents what they've come up with at the end.
We have a saying at Facebook: "code wins arguments".
The idea is that you can either debate for a long time about whether something is a good idea or not, or you can just code it and see if you can make it work.
Hackathons have led to a lot of our best ideas over the last decade, including our first chat, video and notes products, our development platform that launched at f8, our first mobile ads, and more recently Hyperlapse and Safety Check.
Our 50th hackathon is our largest ever -- with people participating across Menlo Park, London, New York, Seattle, Boston and Tel Aviv.
Our focus today is on exploring ideas that use AI. I'm looking forward to seeing what gets built!