Most cited

Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 11,894 posts.

Any topic
Any year
4711

Better than Free (2008)

[I’ve revised and condensed this short essay into an updated version, which you can read on my Substack here: https://kevinkelly.substack.com/p/better-than-free] The internet is a copy machine. At its most foundational level, it copies every action, every character, every thought we … Continue reading →

4717

Lezer

I keep coming across people who consider parser technology a forbidding, scary field of programming. This is nonsense—a small parser can be very, very simple , and provide a wholesome exercise in recursive thinking. At the same time, it is true that you can make parsing extremely complicated. Mostly, this tends to…

4740

Lambda Calculus Diagrams (2015)

The following table shows diagrams of identity, the booleans, some standard combinators, some Church numerals, the predecessor function on Church numerals, and Omega. term definition diagram alternative I/1 λx.x K/true λx.λy.x false/0 λx.λy.y S λx.λy.λz.(x z)(y z) Y λf.(λx.x x)(λx.f(x x)) 2 λf.λx.f(f x) 3 λf.λx.f(f(f…