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this post was submitted on 16 Aug 2023
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Today I Learned
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What the heck is real life number
An actual measured data point, as opposed to a randomly generated number. Also this principle applies specifically to the first digit. Overall the title is a complete mess.
Basically, when you gather a bunch of data points about real world quantitative phenomena (e.g. town population, lake surface area, etc), you find this distribution curve of leading digits where 1 is something like 30% most frequent, gradually decreasing down to 9 being least frequent.
This is called Benford's Law, it's basically an emergent property about how orders of magnitude work. It's useful because you can use it to detect fake data, since if your data faker doesn't know about it they'll generate fake data that looks random but doesn't follow this distribution.
something that isn’t an imaginary life number