Most of that had been an educated guess based only on the size of the estimated machine that would need a computer system large enough for a bunch of people to run around in. However it was possible that there was a bit of transdimensionality involved... They might all have been inside something smaller than a hatbox that was actually a great deal larger on the inside. But he doubted that.

"Yes, it is, isn't it? It's absolutely fascinating! Was this build around an actual planet or constructed entirely in space? I'd love to ask SUPERBIA. I wonder if it would answer..."

Oh sorry, he had gone off on a sidebar hadn't he?

"What do you think of it all?"