These days the technology can solve our problems and then some. Solutions may not only erase physical or mental deficits but leave patients better off than "able-bodied" folks. The person who has a disability today may have a superability tomorrow.
We've been co-evolving with our technology for a hundred thousand years....
If we had had the right technology back then you would have seen Eva Braun...
If you write a novel alone you sit and you weave a little narrative. And it's O.K. but it's of no account.