The entire idea is to increase the probability that you are correct. So if you're coding tired, you're decreasing that probability. If you're using a framework

The entire idea is to increase the probability that you are correct. So if you're coding tired, you're decreasing that probability. If you're using a framework you're not familiar with, you're decreasing that probability. This is why I mentioned that it was in trading technology: they only get paid to be right.