Besides, it's an exaggeration. I've been programming for 35 years, and Turbo Pascal was one of my first languages. I wrote OWL code! Seeing that splash screen brought back memories. But I can understand and debug problems that cross almost any layer of the software stack. Anything from some ReactJS library to kernel code to UEFI. I'm now 42 so the idea nobody can understand or debug interactions across layers before they die is for the birds. The stack isn't that deep.