What you think won't happen in 1000 years is what I think is almost certainly happening within 40 years. I'd bet everything I own it'll be way, way, way more impactful than the sewing machine within 40 years. I think some bits of physical labor may still exist in 40 years, but almost none, and only when a human really wants to talk to or deal with a human, such as in some medical and therapeutic professions, some art fields, etc. (Again, assuming no universal outlawing of AI.)