An excellent reminder that usability wise, high-tech is not always the best path. It's good to also evaluate low-tech options at every turn. This is important to know the pros and cons of all the options you can pick.
There's also an interesting point in there about how those more constrained technologies in fact force and help designers to focus on the most important user features.

Debatable "feature", bad implementation, dubious community handling... Clearly not a good example to follow from the Go space.

Very cool reverse engineering of the schematics of the infamous Pong game. It had no software and no CPU either. Quite a feat.