In times of great emergency, when the normal rules have been suspended, all sorts of things that used to seem unthinkable suddenly enter the realm of possibility. A national health service paid for by taxes and free at the point of delivery in the United States, for example — or a guaranteed basic income in Spain.

“We are going to implement a minimum basic income as soon as possible,” said Nadia Calviño, Spain’s deputy prime minister and economics minister, on Monday. She added that it will not “just be for this special situation, but for good.”