Mathematicians Measure Infinities, Find They’re Equal

Start counting by ones and keep going. That’s infinity. Now start counting by twos. The second version of infinity (just even numbers) is smaller than the first version, right? Nope. They’re both infinite, and more important, they’re both the same “amount” of infinite — according to a new proof by mathematicians Maryanthe Malliaris and Saharon Shelah. Hope you like The Highlighter’s first math-based article! (To my credit, I participated in my elementary school’s Math Bowl, along with loyal subscriber Millie.) (11 mins)

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