Maybe you know about this place. If not, you can imagine it. The Hotel Infinity, a hotel with an infinite number of rooms. Don’t snarl your mind with trying to imagine how it was built, or which room numbers can be found down which corridors. You don’t need to guess how deep a foundation it has to sit on, how many stories it is tall, or how many sub-basements it has. Don’t … [Read more...] about Hilbert’s Hotel