Those two factors, plus a third, immigration, lie behind the rise of Silicon Roundabout. McWilliams makes a compelling case for allowing in foreigners, especially young, educated, tech-savvy ones. Their desire to settle in the UK, and mainly in London, where they’re drawn to the increasingly hip area on the cusp of cheaper accommodation to the east and north of London is, he argues, responsible more than anything for the success of Old Street and its Shoreditch close neighbour.