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Ruby Conf 12 - Y Not- Adventures in Functional Programming by Jim Weirich
Confreaks
Jim Weirich's RubyConf 2012 talk derives the Y combinator step by step, live-coding in Ruby lambdas. It builds up an understanding of functional programming and lambda calculus from first principles.
HN recommends it repeatedly as one of the best and most entertaining programming talks, and as the talk that makes the Y combinator click, even for people who do not use Ruby.
20 Hacker News mentions · 2013–2026