London's global appeal as a cultural centre with relative tolerance, combined with its research base across the Golden Triangle, gives it access to scientific and entrepreneurial talent to capitalise on the combination of complicated technology with soft-information skills from media and other services.

Very quietly I take my leave,
As quietly as I came here;
Quietly I wave good-bye,
To the rosy clouds in the western sky.

Chinese people visiting the UK to see the tablet commemorating Xu Zhimo’s poem Saying Good-bye to Cambridge Again reputedly express amazement that such a small island could have run an empire covering a quarter of the world.

The concern for many Europeans is that innovations changing the world are now primarily coming out of emerging markets,…