> What happens when you press the accelerator on your car? No single automotive engineer can answer that question to the level of detail that the original post

> What happens when you press the accelerator on your car? No single automotive engineer can answer that question to the level of detail that the original post wants to approach. A car is a collection of separately engineered mechanical devices meeting some power/torque/thermal requirements, electronic units which, to a mechanical engineer are essentially black boxes with inputs and outputs. Abstraction is in every field of engineering and it helps people reason about a complex system in terms of abstract interconnected parts, not in terms of bits, bytes, cogs or bearings. In a similar vein, a web developer, a browser developer, a kernel developer, a network driver developer each use different levels of abstraction and paradigms in order to achieve their thing.