Olivia Kelly, Dublin editor at the Irish Times, dives into the exciting approval of the MetroLink, connecting Dublin Airport to the city. She elaborates on the line's extensive history, its 18.8 km mostly-underground route with 16 stops, and the futuristic driverless trains. Kelly highlights potential impacts on housing and public transport, while discussing the intricate planning and possible legal challenges ahead. With construction estimated to start soon and the first rides expected by the mid-2030s, excitement is palpable for this transformative project.