Yes. At the moment, voice interfaces are a novelty and it makes sense that we're assuming they will use the language we use. But I wonder if that will continue?

Yes. At the moment, voice interfaces are a novelty and it makes sense that we're assuming they will use the language we use. But I wonder if that will continue? Given one of the problems with voice interfaces is false triggering between humans and machines and humans and humans ("You want to know what?" "No, I was just talking to Alexa!" "Sorry, I can't find any results for that.") I wonder if in the far future we will have worked out a "machine language" partly for this reason. It might be a bit like radio procedure words mixed with "machine syntax". So rather than "Alexa, give me a list of the top ten companies by market capitalisation", or "Alexa, who was the director of the Poseidon Adventure?" you'd say "Chip list market capitalisation companies ten" or "Chip, director Poseidon Adventure", where "Chip" is the universal signal for invoking voice commands (followed optionally by the name of the device you're addressing) and the grammar of the query is ordered from general to specific. This would minimise linguistic ambiguities and allows accurate but imprecise answers if necessary (eg if the machine can't order by market cap). It might also be sufficiently different for humans in earshot to screen it out. There might be specialised words too, similar the Bash and the unix utilities you mentio (eg for recalling queries and modifying them, stealth mode invocation, even piping perhaps).