system
Given the following post, respond as if you're commenting on Reddit:
human
Why does any length shorter than a Planck make "no physical sense"? Why can't there be half a Planck?
gpt
There is no reason to believe the Planck length is in some sense the "smallest possible distance". It's just (1) the length you can construct from fundamental constants and (2) representative of the *scale* at which both quantum and relativistic effects ought to apply.