I specialised in programming languages in university, which is totally useless for my career. But I have to say, the following diagram just lights up all the pleasure receptors in my brain:
(from: blog.acolyer.org/2019/01/25/pro)
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Similarly, 's piece on why interviewers ask linked link questions in programming job interviews is just a delightful deep dive into CS history: hillelwayne.com/post/linked-li