Science & Technology

Joseph Nye writes that even at this early stage, there are at least eight lessons— some old, some new— that the world is learning (or relearning) from the war in Ukraine.

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

Henry Kissinger warns that many existing domestic and international institutions that have helped govern the past decades will not survive the Covid-19 crisis. He is surely correct.

Because hand-to-hand exchange of physical currency could transmit the coronavirus, countries around the world are being forced to reconsider the use of cash. In fact, COVID-19 might turn out to be the catalyst that finally brings digital payments fully into the mainstream. Not surprisingly, the digital-payments industry is already focusing on the opportunities created by the crisis.

Joseph Nye writes that In the cyber realm, the same program can be used for legitimate or malicious purposes, depending on the user’s intent. But if that makes traditional arms-control treaties impossible to verify, it may still be possible to set limits on certain types of civilian targets and negotiate rough rules of the road that limit conflict.