[Smerity]

The same tactic was used by Google for Google App Engine - "if it doesn't scale then we're not including it as a feature". This is why so much of Google App Engine's documentation focuses on scaling [1]. Depending on who you ask this is genius or folly.

By forcing yourself into this tactic you end up having to consider all the scaling complexity in the prototyping stage before your app has even proven itself potentially successful. If your app becomes wildly popular then the combination of your early work and Google's behind the scene scaling means there are far less problems for you to worry about.

My major concern with this method is that people already focus far too much on premature optimizations before they even know where the real bottlenecks are in their application. If premature optimization leads to burn out or less features then it's a poison to our projects and should be avoided.

[1] http://code.google.com/appengine/articles/scaling/overview.h...