The visualization goes down to 10**-16. Planck length is 10**-35
Nice compact visualization.
If you buy into the multiverse idea--we still have quite a (potential) ways to go both up and down. Could scale be fractalized or looped? Maybe at the planck length 10**-35, each mote is a universe.
"There are more things in heaven and Earth, Horatio, Than are dreamt of in your philosophy."