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by ehou 2382 days ago
Same here.

Yesterday I fell in the Collatz trap (https://news.ycombinator.com/item?id=21780068). So after a few hours my 7y old son asked what I was doing (what was I doing?!). Explained him how it works and then we did Collatz "by hand" for almost an hour. These sorta random triggered experiences are the best.