Space is emergent because: spooky action at a distance. Time is emergent because: delayed choice quantum eraser experiments.
Space is emergent because: spooky action at a distance. Time is emergent because: delayed choice quantum eraser experiments.
I even thought at one point I'd try to write a summary of his argument for Wikipedia but failed. It's not the most simple of things.
The end bit I was thinking was "the fact is that a spin-two field has this geometrical interpretation; this is not something readily explainable--it is just marvelous." In section 8-4. But the math leading up to that is tricky.
A smiliar cool idea that I encountered in a string theory course, is when you have tachyons. They seem pretty bad because you can gain energy by creating more tachyons, and your spacetime would decay. But what it really means is that you have chosen a "wrong" spacetime, and you can transform the tachyons away by choosing a different background. (Handwaving here since I'm just an experimentalist ;-))