It’s practically endemic in the modern world. The college student finishing a term paper as the sun comes up, the new parents feeding the baby at 3 a.m., the foreman on the graveyard shift — they’re all among the more than a third of adults in the U.S. who don’t get enough sleep. Long-term, sleep deprivation can have severe ramifications, beyond what can be remedied by a double espresso or a power nap.
A curious creature crawls steadily through the underbrush in a remote forest. It’s not a badger or bobcat but an autonomous vehicle (AV), an unmanned four-wheeled contraption that looks a bit like a miniature moon buggy. Then the movement halts suddenly, as if the AV has paused for thought. Hidden in the foliage is an impassable obstacle: a fallen oak tree. After a couple of minutes of recalibration, the AV skirts the massive trunk and pushes on.