> these days I think the much more important skill is designing systems That's true, but that doesn't mean that there is no value in having an understanding of

> these days I think the much more important skill is designing systems That's true, but that doesn't mean that there is no value in having an understanding of how established technology works under the hood. > What computer science doesn’t teach you is how memory caching works in CPUs. That is also a very good point. There is a lot of daylight between the lambda calculus and real systems.