Messenger's built-in AI is getting a new trick. The M digital assistant will suggest translating a message to your native language if you get a message via Marketplace in a different tongue. It'll start with English to Spanish and roll out to users in the US over the next few weeks. Other languages and availability will come online later. This could make offloading that spare couch of yours a lot easier in the future -- especially if you're trying to communicate with a buyer while you're on the go.