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

Tom Poindexter, the author of popular 1985 learn-to-programming game CROBOTS, open sources his work and posts it to Hacker News.

Commenters discuss being the second- or third-born child while living under China’s now rescinded one-child policy.

A thought-provoking thread about homelessness.

The co-creator of Disney Research’s ‘Boundary Forest’ algorithm weighs in on a machine learning thread.

We’re going to try and do this as a regular feature here on The Macro. We’d also love for you to help. If you experience a thoughtful, surprising or delightful moment on HN, submit your suggestions to us for future HN Highlights via macro@ycombinator.com.