2 ms·

> The "smallest meaningful unit of distance" stuff is nonsense. Why?

• consilient 4y ago
  You get the Planck units by setting c, hbar, G, and Boltzmann's constant to 1. This is convenient for notational purposes but it has no inherent physical significance.
  • naasking 4y ago
    That isn't the only way to argue for a minimal significant distance. Arguably QM sets a strict ~60-70 digit precision limit on physical constants [1], beyond which you arguably can't differentiate between discrete and continuous theories, and so a minimum distance seems like a perfectly sensible way to frame it. [1] https://physics.stackexchange.com/questions/16889/non-computable-numbers-in-physics#comment40236_16893 https://physics.stackexchange.com/questions/16889/non-comput...