Evidently, our impression that solid matter can be localized, that it occupies only one position at a time, is erroneous. The reason that we have not noticed the "wavy" behavior of matter is because such behavior is pronounced only at the small size of atoms. At the relatively large sizes of our bodies and other objects that we can see and touch, the wavy behavior of particles is only a tiny effect. But if we were subatomic in size, we would realize that we and all other objects do not exist at one place at a time but instead are spread out in a haze of simultanous existences at many places at once.
This reminds me of Einstein's own problems with quantum entanglement, which he called "spooky action at a distance.