I'm not too worried about the lag, moreso about the quality of translation. It will likely be useful for basic conversations where the participants simplify the

I'm not too worried about the lag, moreso about the quality of translation. It will likely be useful for basic conversations where the participants simplify their speech, which often is all you need. Or to get a rough idea of a more complex conversation. But it's far from obvious that we'll be able to go from there to anything comparable to the level of conversation you can have after spending years learning a new language properly. Perhaps nuclear fusion is a better comparison than flying cars (which arguably would be a bad idea even if we had the tech).