How can we return to work without spurring a second surge of coronavirus infection? Biologist Uri Alon shares a thought-provoking strategy: four days at work followed by 10 days of lockdown, a cycle that would exploit a weakness in the virus's biology and potentially cut its reproductive rate to a manageable level. Learn more about this approach -- which has already been adopted by both companies and countries -- and how it could be a key to reopening the economy responsibly. (This virtual conversation, hosted by head of TED Chris Anderson and science curator David Biello, was recorded on May 20, 2020.)