From design patterns to category theory

added by DotNetKicks
10/6/2017 1:12:38 PM

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How do you design good abstractions? By using abstractions that already exist. When I was a boy, I had a cassette tape player. It came with playback controls like these: Soon after cassette players had become widely adopted, VCR manufacturers figured out that they could reuse those symbols to make their machines easier to use.