After trying out Mac OS9[1], I discovered Balloon Help, and thought it was quite a neat feature. After I looked for more information about it, I came across this well-written blog post. I especially liked reading the author's reflections about computers being more helpful when they explained why things were.

It reminds me of this other story about writing better error messages[2]; maybe helpful computers are making a comeback.

[1]: https://news.ycombinator.com/item?id=33868197

[2]: https://news.ycombinator.com/item?id=33261125