Jonathon Blow has made the full audio and PowerPoint slides from his MGS talk available on his website.  You can grab them here.  He doesn’t think that the news coverage of the presentation is as thorough as I thought it seemed, and recommends listening to the whole thing before trying to judge the merits of his argument.  His presentations are generally good stuff so I’ll recommend it as well; or if you want to wait, it sounds like he might be putting together a video combining the slides and audio.