48 or 72 hours total time spent developing an application should be ample time to have something bootstrapped. I don't mean 3 days, I mean total time working on

48 or 72 hours total time spent developing an application should be ample time to have something bootstrapped. I don't mean 3 days, I mean total time working on a project. I've found that if I go over the 72 hour mark, I begin to lose interest