"We got flying cars yet?" Dan's under no illusions that he's going to live long enough to see anywhere within a few decades of 2100, but he isn't about to discount the possibility that he'll be sucked into another world and see the future. "Let me know if any of my questions are a little dim. I ain't never even touched a computer. So much of this stuff is real far out for me."

He shimmies out of his coat, letting it fall off his shoulders and hang around his elbows. He's still got layers on underneath.

"What's your favorite green space and where did they fit it? Last time I was in New York, they had a big garden that sprawled over several rooftops. It was stunning. I would have could slept out there under the stars had I been allowed, or I mean, what you can see of the stars in a big city."