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Comment by venv

21 hours ago

They mean 125um = sqrt(a*b), where a is the Planck length* and b the size of the observable universe (I didn't verify). Implying, 125um is some sort of middle ground. *Often said to be the smallest length with physical meaning.

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venv

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jacquesm  20 hours ago

Ok, so it's a bullshit comment. Thank you. You could say this about everything that is not 'Planck length', it's about as useful as Douglas Adams' 'the universe is empty' (only he had a sense of humor).

Oh, even worse they are repeating it in different threads.

https://news.ycombinator.com/item?id=47749957