I know we're still a far way away, but this is definitely a step in the right direction - great job Google!
It's one thing to look at old pictures, it's another to be able to stand in your old house the day after you moved in, to be able to go back to the beach where you went on vacation a few years ago, to be able to stand outside your old house in the woods in the dead middle of fall.
It instantly brought me back to those times in a way that normal photos or videos ever could, and when I made those photospheres I had no idea that I would be able to one day view them in a VR headset!
Maybe you weren't joking. That's the even more scary thing.
Personally I like to hop on my bicycle and meet real people in the real world.
I don't even know what to think about VR at this point. :/