ROMAN JAKOBSON, a linguist, is credited with the notion that languages differ not so much in what they can express as what they must express. The common trope that language X has no word for Y is usually useless (it usually means language X uses several words instead of one for Y). But languages do differ significantly in what they force speakers to express, something Lera Boroditsky talks about often in support of the “linguistic relativity” hypothesis….
….Remember, some years ago, every single person in the US could be connected via six degrees — the old Kevin Bacon game. There’s some evidence that that number has become smaller — perhaps as small as 3 (I’ve seen more scientific numbers that say it is 4.5 or thereabouts)….