This works because he has decades of working experience at the foundational layers and understands each layer of abstraction, what it solves and the interaction

This works because he has decades of working experience at the foundational layers and understands each layer of abstraction, what it solves and the interaction between the abstractions. Can still reason it out, if not the fastest at troubleshooting lowest layers because its no longer in muscle memory. AI can make you productive if you have the necessary experience (which takes a long time). But, AI natives have none of the knowledge of ANY layers, even at the highest layer at which they will be using AI. They only learn how to do prompts, etc and nothing else about what is being done. This is just like anyone can be a pilot because planes mostly fly themselves.