There is no evidence the Planck length is the smallest possible length in the universe, a pop sci misconception. It is the length at which quantum effects domin

There is no evidence the Planck length is the smallest possible length in the universe, a pop sci misconception. It is the length at which quantum effects dominate the structure of space time, ie "quantum foam". It is perhaps the smallest measurable distance according to some calculations. Most experimental evidence indicates space is continuous.