Superconductivity For Happiness Trial and error Mavericks Superconductor 02 hole doping(p) Quantum critical points o Cuprates 100K 1986 Mueller Bednorz MgB? 39K2001 Akimitsu Fesc 50K2006 HosonoMavericks MgB2 39K 2001 Akimitsu Cuprates ~100K 1986 Mueller & Bednorz FeSC ~50K 2006 Hotsono Quantum critical points © Superconductivity For Happiness Trial and error