This TED Talk features light artist Leo Villareal discussing his career, which began with creating a light beacon to navigate Burning Man. He details his large-scale light installations, including the Bay Lights on the San Francisco Bay Bridge and the Illuminated River project in London. Villareal emphasizes the transformative power of light to alter perceptions of urban spaces and foster community, citing the positive impact of his projects on public engagement and appreciation for infrastructure. His work uses code and LEDs to create dynamic, abstract light patterns, showcasing how technology can enhance public art and create a sense of wonder. The Bay Lights project, initially temporary, was revived due to community support, highlighting the lasting impact of public art.