The ‘Weirdest’ Matter, Made of Partial Particles, Defies Description Theorists are in a frenzy over “fractons,” bizarre, but potentially useful, hypothetical particles that can only move in combination with one another. Quanta 7/26/2021 The ‘Weirdest’ Matter, Made of Partial Particles, Defies Description WIRED 8/01/2021 The ‘Weirdest’ Matter, Made of Partial Particles, Defies Description