Podcasts fill our brains during the long periods when we’re quiet, such as while we drive or travel. Voice-first platforms are going to allow us to fill our brains during all the interstices of our lives, those blips of time that used to be lost to forgettable activities like brushing our teeth, sorting through mail, or even checking our phone notifications. In 2016, Google revealed that 20 percent of searches on its mobile app and Android devices are done by voice.
