He's given the rough aspects of the speech a bunch of times, but here's a longer version from the 2016 AIS Gala. He had previously done a recorded message to the group, but I think this is the one time he was the full keynot speaker? [https://www.youtube.com/watch?v=mpYWwsjLABo](https://www.youtube.com/watch?v=mpYWwsjLABo)