# Is it impossible for anything to touch anything else because of Planck lengths?

Suppose you touch a cube. There would still be a Plank length between your hand and the cube. Does this mean that it is impossible for anything to touch anything, specifically because there is always an infinitesimal distance between two objects? I don't think this would work (since there can be no distance smaller than a Plank length and that if you are a Plank length apart, you are "touching" something, but I want to make sure that this idea is void before I discard it).

• You said “There would still be a Plank length between your hand and the cube.” There is no theoretical or experimental support for this claim.
– Dale
Nov 3 '21 at 16:20
• It's just not clear how you come to that conclusion. Perhaps edit your question to clarify. Nov 3 '21 at 16:23
• It is not scientific. It has no basis in either experiment or any experimentally confirmed theory. I doubt it is even supported by a purely speculative published theory.
– Dale
Nov 3 '21 at 16:27
• Possible duplicates: physics.stackexchange.com/q/23797/2451 , physics.stackexchange.com/q/1077/2451 and links therein. Nov 3 '21 at 16:55
• This is not a theory. So there is nothing to scrap.
– nasu
Nov 3 '21 at 16:59

So it's true that nothing touches anything else, but it's usually for a different reason. Except maybe in extremes like atomic nuclei and neutron stars where fermions are crowded right next to each other and Pauli exclusion effects start to become the reason. But those particles are themselves much larger (like $$10^{20}$$ times) than the Planck length, so it's even then hard to define what it means to say they're touching.