What Are the Characteristics of a Good Primometric?

Every week and start up school, we've asked you in the soft ware to define your primary metric. You can only pick one, one pri metric and asthe metric. If there's a way to get 90 % of the job done with just one variable, that's better than having a bunch of variables. So what are the characteristics of a good primo metric? There are four of them, a, onea. O daily active user is a weaker but another a good, decent indication of whether you're dellring value or not.