I don't think that it is waste. Learning to be test ninja means that you have to learn to concentrate and spend effort at a single task for a period of time ove

I don't think that it is waste. Learning to be test ninja means that you have to learn to concentrate and spend effort at a single task for a period of time over a period of time. That skill you can later use to do any of the mentioned activities far more efficiently. At least that is how is see. I thought myself to be a test ninja during high school and I still follow the same basic pattern when doing work related stuff or for hobbies.