I think this point is overlooked by the article. There is a little too much of the "Little Engine that Could" which tends to encourage entrepreneurs to ignore

I think this point is overlooked by the article. There is a little too much of the "Little Engine that Could" which tends to encourage entrepreneurs to ignore disconfirming data from prospects. For me, the key point is to decide what failure looks like before you start (and unexpected success, which for an entrepreneur signals that a product deserves more investment, potentially even third party investment in addition to re-directed internal resources) so that you know when to quit. I blogged about this in more detail (and with some good but long quotes from Peter Drucker) here: http://www.skmurphy.com/blog/2007/05/25/seth-godins-book-the-dip-save-your-money/ http://www.skmurphy.com/blog/2007/05/25/seth-godins-book-the...