Scientists at CERN’s Large Hadron Collider have made a discovery that could change everything we know about physics — a new exotic particle known as a tetraquark that appears to exist in two places at once. This strange behavior, known as quantum superposition, has long been observed in subatomic particles like electrons and photons, but never before at such a macroscopic scale. When researchers attempted to measure the tetraquark’s position, they detected it simultaneously in two different loca