Explore the fascinating world of "Negatively Curved Crystals" in this 14-minute TEDx talk by Fields Medal recipient Curtis McMullen. Gain insights into the concept explained in simple terms and discover the potential for infinitely many patterns that can emerge from these unique structures. Delivered at TEDxNiendorf on July 31, 2024, this independently organized event follows the TED conference format, offering a local perspective on cutting-edge mathematical concepts. Delve into McMullen's groundbreaking work and expand your understanding of complex geometric patterns in an accessible and engaging presentation.