The “declining cost of distance”, as Karen Harris, the managing director of Bain consultancy’s Macro Trends Group, calls it, is likely to accelerate as a result of the coronavirus crisis. More companies are establishing systems that enable staff to work from home, and more workers are getting accustomed to it. “These are habits that are likely to persist,” Harris says.

The implications for big cities are immense. If proximity to one’s job is no longer a significant factor in deciding where to live, for example, then the appeal of the suburbs wanes; we could be heading towards a world in which existing city centres and far-flung “new villages” rise in prominence, while traditional commuter belts fade away.

Another potential impact of coronavirus may be an intensification of digital infrastructure in our cities. South Korea, one of the countries worst-affected by the disease, has also posted some of the lowest mortality rates, an achievement that can be traced in part to a series of technological innovations – including, controversially, the mapping and publication of infected patients’ movements.

In China, authorities have enlisted the help of tech firms such as Alibaba and Tencent to track the spread of Covid-19 and are using “big data” analysis to anticipate where transmission clusters will emerge next. If one of the government takeaways from coronavirus is that “smart cities” including Songdo or Shenzhen are safer cities from a public health perspective, then we can expect greater efforts to digitally capture and record our behaviour in urban areas – and fiercer debates over the power such surveillance hands to corporations and states.

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Indeed, the spectre of creeping authoritarianism – as emergency disaster measures become normalised, or even permanent – should be at the forefront of our minds, says Sennett. “If you go back through history and look at the regulations brought in to control cities at times of crisis, from the French revolution to 9/11 in the US, many of them took years or even centuries to unravel,” he says.

At a time of heightened ethnonationalism on the global stage, in which rightwing populists have assumed elected office in many countries from Brazil to the US, Hungary and India, one consequence of coronavirus could be an entrenchment of exclusionary political narratives, calling for new borders to be placed around urban communities – overseen by leaders who have the legal and technological capacity, and the political will, to build them.

In the past, after a widespread medical emergency, Jewish communities and other socially stigmatised groups such as those affected by leprosy have borne the brunt of public anger. References to the “China virus” by Donald Trump suggest such grim scapegoating is likely to be a feature of this pandemic’s aftermath as well.

On the ground, however, the story of coronavirus in many global cities has so far been very different. After decades of increasing atomisation, particularly among younger urban residents for whom the impossible cost of housing has made life both precarious and transient, the sudden proliferation of mutual aid groups – designed to provide community support for the most vulnerable during isolation – has brought neighbours together across age groups and demographic divides. Social distancing has, ironically, drawn some of us closer than ever before. Whether such groups survive beyond the end of coronavirus to have a meaningful impact on our urban future depends, in part, on what sort of political lessons we learn from the crisis.

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The vulnerability of many fellow city dwellers – not just because of a temporary medical emergency but as an ongoing lived reality – has been thrown into sharp relief, from elderly people lacking sufficient social care to the low-paid and self-employed who have no financial buffer to fall back on, but upon whose work we all rely.

A stronger sense of society as a collective whole, rather than an agglomeration of fragmented individuals, could lead to a long-term increase in public demands for more interventionist measures to protect citizens – a development that governments may find harder to resist given their readiness in the midst of coronavirus to override the primacy of markets.

Private hospitals are already facing pressure to open up their beds without extra charge for those in need; in Los Angeles, homeless citizens have seized vacant homes, drawing support from some lawmakers. Will these kinds of sentiments dwindle with the passing of coronavirus, or will political support for urban policies that put community interests ahead of corporate ones – like a greater imposition of rent controls – endure?

We don’t yet know the answer, but in the new and unpredictable connections swiftly being forged within our cities as a result of the pandemic, there is perhaps some cause for optimism. “You can’t ‘unknow’ people,” observes Harris, “and usually that’s a good thing.” Sennett thinks we are potentially seeing a fundamental shift in urban social relations. “City residents are becoming aware of desires that they didn’t realise they had before,” he says, “which is for more human contact, for links to people who are unlike themselves.” Whether that change in the nature of city living proves to be as lasting as Bazalgette’s sewer-pipe embankment remains, for now, to be seen.