It's not just this but also the fact that there are many more layers of abstraction now than there were even 10 years ago, never mind 20/30/40 years ago, and th

It's not just this but also the fact that there are many more layers of abstraction now than there were even 10 years ago, never mind 20/30/40 years ago, and the real world incentive to understand the entire stack of those abstractions is virtually nil in modern engineering environments.