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Books, apps, and tools people actually name.

Compare how many distinct people recommended, used, liked, owned, built, or avoided the same item—then inspect every transcript excerpt behind the count.

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Functional Programming in Scala

1 distinct person

recommends / book

“I'm a big reader. I would start with a technical book. It is Functional Programming in Scala. This is the single best technical book I have ever read. It's very weird, because you're probably not going to use Scala. And I don't know how much this matters in the future now, but there's this just elegance to functional programming and thinking in types, and this is just the way that I code, and the way that I can't stop thinking about coding.”

Boris Cherny · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · 19 Feb 2026

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