In 2015, air pollution in Beijing reached such extreme levels that China issued its first-ever red alert for smog. The thick, toxic haze blanketed the city, reducing visibility and prompting school closures, traffic restrictions, and factory shutdowns. In the midst of the smog, something surreal happened—buildings outfitted with LED screens appeared to glow through the fog, creating an eerie, sci-fi effect that made them look like futuristic holograms. The moment captured global attention, symbo