In true open source development, there's lots of visibility all the way through the development process.
Someone once pulled me aside and said it was all right to succeed, and I realised that I knew what failure felt like, but I didn't know what success felt like. I've carried that with me ever since.
When the motor was completed and tested, we found that it would develop 16 horse power for a few seconds, but that the power rapidly dropped till, at the end of a minute, it was only 12 horse power.
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