Actually you need to stop earlier, I've found that quite a bit of the stuff that people think they need to have built isn't even close to needed in reality. In

Actually you need to stop earlier, I've found that quite a bit of the stuff that people think they need to have built isn't even close to needed in reality. In fact, building it and shipping it can be a major mistake itself. So I completely agree on the underlying principle: Dont to _anything_ prematurely, and that first and foremost includes actually writing any code at all.