How cities can heal themselves

As urbanisation accelerates and infrastructure decays, researchers are working out how cities can heal themselves. As the FT’s Nikou Asgari explains, they are carrying out tests on materials that repair themselves and an army of maintenance robots that can work around the clock. Small robotic worms will find and fix leaks in buried water pipes and drones will detect and patch up potholes in the middle of night.


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Will gene editing increase inequality?

A Chinese scientist claims to have created the world’s first genome-edited babies, but won't this cause more inequality in society? Until now trials in gene editing have targeted genetic disorders, but science commentator Anjana Ahuja believes the emphasis will now move to genetic enhancement. She says the rich will benefit most and we’ve barely begun to consider the consequences.

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