None of us, including Jeff, knew exactly what we would end up building; it’s more like we stuck with the process and surrendered to where it was taking us. Prime was a perfect example of the multicausal, nonlinear way in which business initiatives both major and minor got decided on and executed at Amazon. Correspondingly, we can’t tell a linear story of how we came up with Prime because there isn’t one. Instead, this chapter will reflect that there were a lot of little tributaries that emptied into the river of Prime.