Yea, you identify bottlenecks and refactor those as needed (with something like rails it's pretty easy to change out parts of your system while retaining the ra

Yea, you identify bottlenecks and refactor those as needed (with something like rails it's pretty easy to change out parts of your system while retaining the rails core). Every business will have different bottlenecks and it's very hard to identify them before you start accumulating customers and see how they are using your app