Explore the fascinating world of error correction codes in this 20-minute video from 3Blue1Brown. Dive into a discovery-oriented introduction to Hamming codes, learning how to send self-correcting messages. Gain insights into the mathematical principles behind error detection and correction in digital communications. Follow along as the video uses engaging animations to explain complex concepts in an accessible manner. Discover the practical applications of Hamming codes in modern technology and understand their significance in ensuring reliable data transmission. By the end of this educational journey, grasp the fundamental ideas behind error correction techniques and appreciate their role in our increasingly digital world.