I think the best way to understand the Planck length is to understand how we came to Planck’s constant in the first place. Science Physics girl has a good video on it (she shared today that she’s getting better, which is fantastic news)

Not a member myself, but I agree that this makes alot of sense, where proof of membership is a requirement to join this instance.

On a seperate note, how does one become a member of SDF?