Part 4/9:
As absurd as it may initially seem, the principle embodied in Schrödinger's cat is very real—and crucially important within the realm of modern physics. If quantum objects were not capable of existing in multiple states simultaneously, the very computers that we use today would not be possible. The phenomenon of superposition—which posits that particles can exist in various states at once—is a key principle that stems from the dual nature of matter as both particle and wave.