This talk will delve into the transformative role of light in our urban environments. This session investigates the nuanced relationship between light, visual aesthetics, and functionality in our cities. From the choices between lights on or off to the delicate balance between energy efficiency and safety, the discussion will explore the impact of illuminating our spaces, extending into the ethical consideration of converting every corner into a 'point of sale.' As we navigate the future of this technology, we question its evolving role and the next frontier it presents for urban landscapes.