The European technology landscape is dominated by US firms such as Amazon, Microsoft and Apple. The seven largest tech firms in the world, by market capitalisation, are all American. There are only two European companies in the top 20 — ASML and SAP. Whereas China has developed domestic tech giants of its own, European champions are often acquired by American companies. Skype was bought by Microsoft in 2011; DeepMind was bought by Google in 2014. The development of AI is also likely to be dominated by American and Chinese firms. The leading universities that feed the pipeline of tech start-ups...