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If there's a minimum length (the Planck length?) then space is discrete and the measurement bottoms out at some point, it would be infinite if space was continuous and infinitely divisible.


"If there's a minimum length (the Planck length?) then space is discrete "

"The Planck length is the scale at which classical ideas about gravity and space-time cease to be valid, and quantum effects dominate. "

(https://www.physlink.com/education/askexperts/ae281.cfm)

This does not say, that space is discrete, it says that our concept of space does not make sense anymore at sizes that small.


Bingo. There are a finite number of atoms in a coastline therefore there is a finite length. I suspect the calculus to derive it isn't even all that hard.


"There are a finite number of atoms in a coastline"

And atoms do not consist of smaller parts?


Do quarks even meaningfully have a position "inside" the atom?


There are also a finite number of quarks.


Maybe. So can you meassure it then?




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