One of the first things I got as a new PhD student, back in ’01, was a copy of Deb Roy’s thesis. My supervisor was just back from a sabbatical at MIT and he knew Roy there. The thesis blew me away – the ideas, the new approaches, this way of learning. Remarkable. The seeds of the work he’s doing now were present then, but oh my has he moved on too. This is a great talk. Watch it to the end.