the point is that this is the first version released to the public
do you remember how translation quality was 10 years ago?
I do, it got waaaay better in the last decade, to the point where lots of translators got out of the business
by 2030 chatGPT will have evolved a lot.
Kind of; it's not a guarantee that it'll ever be indistinguishable. There's a real debate about AI, and how lifelike it can become. There's also certain legislation that might come into play. For example, right now I believe there's some KYC involved, like a phone number. That might be increased in the future, if they deem it appropriate. There's also laws revolving around AI specifically, and how far they can go with it.
There's also something called Moore's law. Meaning, we have exponential growth because we don't know a lot about a subject at first, but then that starts to plateau the more we know about it. Translations, and AI are very likely subject to this just as much as computers, and performances.