That all sounds pointless. Why would we want to use something built on top of a system that’s constantly changing for no good reason?

Unless the accuracy can be guaranteed at 100% this theoretical will never make sense because you will ultimately end up with a system that could fail at any time for any number of reasons. Predictive models cannot be used in place of consistent, human verified and tested code.

For operating systems I can maybe see llms being used to script custom actions requested by users(with appropriate guard rails), but not much beyond that.

It’s possible that we will have large software entirely written by machines in the future, but what it will be written with will not in any way resemble any architecture that currently exists.