Explore the evolution of quantum theory in this 21-minute video from the series "The Theory of Everything: The Quest to Explain All Reality." Delve into Einstein's groundbreaking work on the photoelectric effect and how it challenged the wave theory of light. Examine the updated double-slit experiment that introduced a perplexing conundrum in our understanding of light's behavior. Learn about the Rutherford atomic model and how Bohr's updates refined our conception of atomic structure. Discover the revolutionary Schrödinger equation and its implications for quantum mechanics. Investigate the wave function concept and the Copenhagen interpretation, which provide a framework for understanding quantum phenomena. Gain insights into the contributions of legendary scientists like Einstein, Schrödinger, and Bohr, and how their work shaped our current understanding of quantum theory and the nature of reality.