Attending conferences is more about meeting the people who attend conferences than about watching talks (which are recorded and can be watched later using less-valuable hours), so I stayed outside and talked to people during many of them. But I was glad I watched Jaan Tallinn's, which was not only excellent, but also the subject and tone for valuable conversations later in the day. Robin Hanson's talk was well presented, though I disagree with it (I think the sort of society of ems he describes would be inherently unstable in a way that isn't survivable). Julia Galef and Luke Muehlhauser presented very well, though on topics I'm already pretty familiar with. Luke ended up signaling a whole lot of uncertainty (saying that it's all open research problems) about singularity-related issues, even in a few cases where I feel we actually know quite a bit. Overall it was an excellent summit, well organized with top notch presenters and a top notch crowd. My only real complaint would be the food, which had entirely the wrong macronutrient composition.