When a colleague and I got stuck with a problem, we would literally just talk about it, and we'd talk about it, and talk about it. I remember at one point saying to him, "It's kind of a waste of time just talking about it all the time. We should do something about it." He said, "No, no, let's just talk a bit more, because we don't really know what to do." The more we talked about a problem, suddenly we'd almost have that light bulb moment when we'd go, "Ah, now that's the next step."

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