![A protester gives a victory sign during clashes near Tahrir Square in Cairo in November 2011. Goran Tomasevic / Reuters](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/RUHPLTBIQKOJAVYLXMGYI3XJOI.jpg?smart=true&auth=125f2a2ac037fba7f5abb7e73c76dcd9e398996d4ef9e242bde54f80cdd6f280&width=400&height=225)
A protester gives a victory sign during clashes near Tahrir Square in Cairo in November 2011. Goran Tomasevic / Reuters
A protester gives a victory sign during clashes near Tahrir Square in Cairo in November 2011. Goran Tomasevic / Reuters
Street life: our future depends on our ability to share and sustain public space
Negotiating our ever more crowded cities and maintaining vibrant public spaces are among the major challenges facing humanity in the coming decades.