For some it was the taped-off park benches, or the sight of police officers handing out fixed penalty notices to sunbathers. For others it was the sheer numbers of deaths being reported in inner boroughs. London in the spring of 2020 was definitely not the place to be. As with other world cities, it faced what seemed an existential crisis. The streets quickly drained of people, and those who could fled to second homes in the country. The voracity with which Covid-19 spread sparked a fear of living at high densities. Pundits in Britain and America quickly proclaimed the death of cities. The belief was that remote-working had freed people from the constraint of living close to the office and they would now opt for quieter lives in smaller towns and suburbs.