> greatest genius [...] was understanding the market. So many people doing product development work of one sort or another fail to understand this to their det

> greatest genius [...] was understanding the market. So many people doing product development work of one sort or another fail to understand this to their detriment. You have to screw up the engineering for it to kill a product; a mediocre implementation is often times just fine, especially if you are early. But if you are building the wrong thing, no amount of implementation talent can save you.