Looks like fun. I'd love to see the in-flight safety video!
"Make sure there's nothing in your pockets because we'll be hitting 3 Gees. If anything goes wrong, we're all probably toast."
I think this was just an interesting idea thrown out at the end of a talk that had much more interesting stuff, such as redirecting all of SpaceX's resources away from Falcon to build the BFR, and putting humans on Mars by a 2024 'aspirational goal'