Here’s a roundup of some of our favorite recent moments on Hacker News.

The programmer who wrote the heap manager for Borland C weighs in on a thread about coding and memory management.

hackernews-dec-1

A fun, absurdist blog about a hedgehog startup founder, with the blog’s creator explaining why she started it.

hackernews-dec-2

A site that aggregates new research on physics-based animation, created by a CS professor at the University of Waterloo.

hackernews-dec-3

Where the phrase “fire an event” may have originated.

hackernews-dec-4

If you experience a thoughtful, surprising or delightful moment on HN, submit your suggestions to us for future HN Highlights via macro@ycombinator.com.