Or is it a statistical calculation of where the particle could possibly be. If its a property of nature then it must have a limit, distance at which it seaces to exist. Also a second question does space time exist in QM and if it doesent then why does it exist in the classical world which it does exist doesent it? Im asking this because the wave functions/ superposition of macro objects is infentismly small but what I want to know is the wave packet/superposition of macro objects subject to classical physical space/distance? Any help would be greatly appreciated sorry for the spelling my spell check doesent work.