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Hotel Infinity:  Part One

Introduction to Hilbert's Hotel Paradox -- a riddle about the nature of infinity.  

Once upon a time, there was a hotel with an infinite number of rooms.  You might be thinking this is impossible, and if so you're right.   A hotel like this could never exist in the real world.  


But fortunately we're not talking about the real world, we're talking about math.  And when we do math we can make up whatever rules we want, just to see what happens.  

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