Explore the fundamental concept of wavefunctions in quantum mechanics through a 23-minute video lecture. Delve into the double-slit experiment to understand why wavefunctions are essential for describing quantum particles. Compare the behavior of classical particles, classical waves, and quantum particles to grasp the concept of wave-particle duality. Learn how the counterintuitive results of the experiment lead directly to the idea of the wavefunction, providing a practical approach to understanding quantum mechanics. Gain insights into the mathematical simplicity behind these complex concepts and discover how wavefunctions evolve over time to describe the behavior of particles at the smallest scales.