You're assuming that you know ahead of time what the bottlenecks are, and more importantly, which trade offs to make, because scaling is almost always about tra

You're assuming that you know ahead of time what the bottlenecks are, and more importantly, which trade offs to make, because scaling is almost always about trade offs. A scalable solution is usually a more rigid solution as well, and that can be a problem for a startup that may need to try a few ideas before they hit on what works.