Britain must find its tech champions or be left behind

The wild distortions that have convulsed world stock markets this year hit another milestone on Wednesday when Apple became the first company to exceed $2 trillion (£1.5 trillion) in value. With one company now worth nearly as much as all of those on the FTSE 100 combined, one reason Britain’s stock market has lagged behind the US recently is the lack of the type of businesses that keep on pushing Wall Street higher. The surging share prices of Silicon Valley’s giants this year