The discussion explores the visual perception of objects made of ions, questioning what they would look like if visible. It highlights that if electrons are present, the ions would form a plasma, appearing bright at high densities. Conversely, if electrons are absent, a Coulomb explosion occurs, which could either result in a visible explosion or complete invisibility if the explosion is intense enough. The conversation emphasizes the conditions under which ions could be perceived, focusing on plasma formation and explosive reactions. Understanding these concepts provides insight into the behavior of ions under different circumstances.
