Donald Knuth – “I was scared and wanted to prove myself”
youtube.com5 pointsby nocman0 comments
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While I agree that for some people games with a time limit are not fun, I don't think the challenges and difficulty should be classified as "purposeless" and "dumb". For many the challenge/difficulty IS the fun part, and they serve a genuine purpose. If you don't like that, then play a different game, but that doesn't mean the game you don't like is useless.