Planck lengths arent the smallest increments of length, this is rather a scale under which we have serious questions about quantum mechanics, chief among these

Planck lengths arent the smallest increments of length, this is rather a scale under which we have serious questions about quantum mechanics, chief among these is gravity. Similiar limits exist to frustrate metrologists, for example the famous visible light diffraction limit at around 200nm >>In some forms of quantum gravity, the Planck length is the length scale at which the structure of spacetime becomes dominated by quantum effects, and it is impossible to determine the difference between two locations less than one Planck length apart.