For 60 years, Moore's Law and Dennard scaling drove the exponential advancement of computers, making them faster, smaller, and more energy-efficient. But as Nick Harris explains, the era of transistor-based technology has reached its physical limits. The future of computing demands a new solution, and that solution is light. Nick founded Lightmatter in 2017 to fully transform AI data center infrastructure. By harnessing light to process and transmit data, Lightmatter is laying the foundation for the next generation of computing. The company invented the world's first 3D-stacked photonics engine and was most recently valued at $4.4 billion. In this episode, Nick shares why he chose to leave academia after receiving his PhD, how his go-to-market strategy hinged on building real friendships and understanding his customers' internal roadmaps, and why he believes that having an obsession is a gift.