At the least, the arrival of smartphones and ubiquitous translation has to reduce the error of inter-language communication. My wife used Muse[0] to sell some stuff on Facebook Marketplace and it was marvelous. We don’t speak a lick of Spanish and the other chap doesn’t seem to speak any English. Regardless, a flawless negotiation and arrangement for sale executed with minimal fuss.

0: a betrayal of monumental proportions because I have built us a home agent - but Muse works better with FB Marketplace