Quantum Computing & Tech ⚛️ on Instagram: "Sean Carroll demonstrates just how deeply strange quantum reality is—using a single photon. In a lab in Geneva, a photon is fired at a partially silvered mirror. According to quantum mechanics, it doesn’t choose a path. It both reflects and passes through at the same time, existing in a superposition of outcomes. Detectors on each path then register the result, creating two distinct physical possibilities. Until a measurement is made, neither outcome is