Granted, the stuff exists: they make it by freezing atoms to within a hair’s breadth of absolute zero.
At that point, matter loses it’s particulate identity and becomes more wave-like…all the individual electrons, protons, and neutrons exist as a wave throughout the condensate.
Question is, when the condensate warms up again, how do the subatomic paticles know how to “go back” to their original constituent atoms?