Zed Shaw:

I worked out a simple method to give you a quick idea whether a
project is even worth attempting. This method is based on a simple
revelation about how clients and projects can be divided generally
into Customer, Collaborator; Implementation, Invention. I call this “The
C2I2 Hypothesis” since it’s not a theory yet, never will be, and you
should probably just use it as a way to think about the problem
yourself.

Food for thought.