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SO MANY ZEROS

Our brains are pretty good at distinguishing the size of the difference between small numbers (2,000, for instance) and big ones (let's say, 500 million). But we have real trouble figuring out the distance between two big numbers (like 50 billion and 1 trillion). Why?
SCIENCE FRICTION

Explaining the entire universe in one fell swoop is tough, but popular theories rise to prominence with few concrete underpinnings. Carlo Rovelli thinks that because we know so little of what's out there, we should try to explain less.
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