It is almost impossible to find a place sheltered from noise in France, say researchers. The hubbub of the crowd, the hum of the machines, the ringing of notifications punctuate the world.

Silence is sometimes scary. Synonymous with danger, it worries. At a time when communication channels and exchanges have never been so numerous, the silent becomes suspect, the outbursts reassuring, the comment obligatory. The rest after this ad The rest of the ad is in the next issue of the magazine.