>Although real-time would be great, a max 5-second delay is manageable. Humans can't even do this in immediate real-time, what makes you think a computer can?

>Although real-time would be great, a max 5-second delay is manageable. Humans can't even do this in immediate real-time, what makes you think a computer can? Some of the best real-time translators that work at the UN or for governments still have a short delay to be able to correctly interpret and translate for accuracy and context. Doing so in real-time actually impedes the translator from working correctly - especially in languages that have different grammatical structures. Even in langauges that are effectively congruent (think Latin derivatives), this is hard, if not outright impossible to do in real time. I worked in the field of language education and computer science. The tech you're hoping would be free and able to run on older devices is easily a decade away at the very best. As for it being offline, yeah, no. Not going to happen, because accurate real-time translation of even a database of the 20 most common languages on earth is probably a few terrabytes at the very least.