The mind-body-lint paradox

The mind-body-lint paradox: not being able to tell whether the bit of lint you find lying around on the floor is the one that came out of your belly button just a minute ago, and if it is, whether it is still a part of you, and if it isn't, if it came out of another mysterious belly button, and if it did, just that that belly button is doing floating around your house dropping pieces of lint here and there, and if it isn't etc etc etc....