The State of Tech — The European Edition of Saturday 21 March 2026: Europe leads the world on AI regulation as the EU AI Act takes full effect, the continent's unicorn boom is rivalling Silicon Valley, challenger banks like Revolut are reshaping European finance, ASML and the EU's chip sovereignty push are redefining geopolitics, the Green Deal is fuelling a clean-tech wave, and European governments are embracing open-source software for digital independence.