Gideon Lewis-Kraus writes: One Enlightenment aspiration that the science-­fiction industry has long taken for granted, as a necessary intergalactic conceit, is the universal translator. In a 1967 episode of “Star Trek,” Mr. Spock assembles such a device from spare parts lying around the ship. An elongated chrome cylinder with blinking red-and-green indicator lights, it resembles a retracted light saber; Captain Kirk explains how it works with an off-the-cuff disquisition on the principles of Chomsky’s “universal grammar,” and they walk outside to the desert-­island planet of Gamma Canaris N, where they’re being held hostage by an alien. The alien, whom they call The Companion, materializes as a fraction of sparkling cloud. It looks like an orange Christmas tree made of vaporized mortadella. Kirk grips the translator and addresses their kidnapper in a slow, patronizing, put-down-the-gun tone. The all-­powerful Companion is astonished.

“My thoughts,” she says with some confusion, “you can hear them.”

The exchange emphasizes the utopian ambition that has long motivated universal translation. The Companion might be an ion fog with coruscating globules of viscera, a cluster of chunky meat-parts suspended in aspic, but once Kirk has established communication, the first thing he does is teach her to understand love. It is a dream that harks back to Genesis, of a common tongue that perfectly maps thought to world. In Scripture, this allowed for a humanity so well ­coordinated, so alike in its understanding, that all the world’s subcontractors could agree on a time to build a tower to the heavens. Since Babel, though, even the smallest construction projects are plagued by terrible delays. [Continue reading…]