The questions you ask before you pick a course.
Why learn Go. Which papers matter. How distributed systems maps to system design. Long reads, one question each, and every one ends in a course.

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Is Go worth learning in 2026? What Go is for, what it deliberately leaves out, where it runs the industry, and why a language built for reviewers is the right language when a model writes the first draft.

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Every system design interview question is a distributed systems question in disguise. What the interview actually tests, why most system design courses skip it, and a lesson-by-lesson map from first principles to the whiteboard.

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The computer science papers worth reading as a working engineer, why they matter more now that a model can write the code, and how to read one in an hour without a PhD.