Why Google’s Quantum Computer Has People Talking About Parallel Universes

Google’s quantum computer completed a calculation in minutes that would have been extraordinarily difficult for a classical supercomputer. But the strangest question isn’t how fast it was. It’s what was physically happening during the computation. In this documentary, we explore the bizarre physics behind quantum computing — from qubits, superposition and interference to decoherence and the many-worlds interpretation of quantum mechanics. We look at why physicists such as Hugh Everett and David Deutsch argued that quantum theory may point toward branching realities, while making clear that parallel universes remain an interpretation rather than an experimentally proven conclusion. We also explore how quantum computers could transform cryptography through Shor’s and Grover’s algorithms, why governments are already moving toward post-quantum encryption, and the disturbing idea of “harvest now, decrypt later.” Then we go deeper — into John Wheeler’s “it from bit,” Landauer’s principle, the holographic principle, and the possibility that information itself may sit at the foundation of physical reality. Quantum computers are no longer science fiction. The real question is what they may ultimately reveal about the universe we live in. Subscribe for more cinematic documentaries exploring space, physics, technology and the deepest mysteries of reality. #QuantumComputing #Physics #ParallelUniverses