This is such a surface level take, it's embarrassing. Unless he's talking about the impression in society, but he is not.

Writing code is a social act even though few actually read it the code, they experience the result of that code.

Maybe, just maybe Simon means "code is disposable now", because some shortcut taker can spin up an apparent duplicate by coaxing and pleading with AI.

That is not a future worth participating in, that's intellectual begging death, because that will create an environment of worthless nonsense.