It's not about being dumb. You're taking it personal when no offence is meant. Understanding the difference cache hierarchies, or how you reach consensus in a s

It's not about being dumb. You're taking it personal when no offence is meant. Understanding the difference cache hierarchies, or how you reach consensus in a system without a central authority, or to what degree various normal forms of data affect you, or being able to design a sound and complete DSL, or a lot of other things. That is what you get from a proper CS degree. Does that mean that you cannot program of design programs? No, but there are people out there with more education better suited to design, say, a large scale medical system where certain guarantees must be given.