The place where I found that to be most effective was taking testing, sort of, to the ultimate: going to visit customers. I did some of that early in my career and that was a great experience, having to go live with a customer for a week, helping them to install a new system, and helping them to work out the problems with using it. It gave me a huge amount of insight into what it's like to actually use our stuff and what I want to be doing for the benefit of the people who are going to be using my stuff. Going back afterwards, developers who had not had that experience all seemed arrogant to
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