This is really cool, and the interface for navigating the 'moments' works like a charm. I was surprised that even on my work machine (which often crumbles to its knees at large content like this in a browser) it loaded smooth and fast, and didn't cause any freezing.
It's better than I expected it to be. I wonder how YouTube counts the views on this.
Incredibly well done. I was really surprised by the seamlessness of it all.