BREAKING: New Phase of Matter

So. Today I learned that crystals are defined as crystals because of their repeating atomic structure in xyz, that perpetual machines are impossible because of the laws of thermodynamics, the spin of an atom (on a subatomic level), quantum computers exists and actually work and how a 10 year old physics theory on time crystals was proven. This is what I remember at least)
Thanks Dianna! Really appreciate it.