"To infinity and beyond!"
Have you even thought deeply about Buzz Lightyear's famous catchphrase from the "Toy Story" movies? Probably not. But maybe you've sometimes looked up at the night sky and wondered about the nature of infinity itself.
Infinity is a weird concept, one that the human brain has a hard time wrapping its limited understanding around. We say that the universe might be infinite, but can it really just go on forever? Or the digits of pi after the decimal — do they actually run on endlessly, always giving us that much more precision about the ratio between a circle's circumference and area? And, could Buzz be right? Is there something beyond infinity?
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