hmm... I don't think as an entrepreneur we should seek to optimize these metrics. These rules are ideal for Paul since they reduces his risk for investing, whi

hmm... I don't think as an entrepreneur we should seek to optimize these metrics. These rules are ideal for Paul since they reduces his risk for investing, which is necessary as a prudent investor. Y-Combinator would be over the moon if 6 out of ten start-ups were successful. If you were one of those 4 who didn't make it, it would be devastating for you. Ultimately as the entrepreneur your rules should be gear towards gaining traction. Think about it, you would be over the moon if 6 out of 10 persons sign-up. Gaining customers is your way of reducing risk. Concoct your rules for reducing your risk. I think Eric Reis, Steve Blank and the lean start-up movement are doing a great job at this. So my advice is don't try to focus on meeting this check list but focus on obtaining traction. Oddly enough, all investors love traction.