Published on: Sun Jun 14 2015Recently an individual told me about a short rule, and attributed the rule to Notch, the creator of Minecraft. I heard the rule as "Use your software equal to the amount of time you spent building it." Thinking about this short role in the context of software built for the purpose of fabrication the following summary arrived. Making = Time spent making tool: ______ Using = Time spent using the tool: _____ Utility = making divided by using (in common units) Now, using my newly arrived equation for my tools... "The Utility of the Spherical Keyboard: Prototype 1" (coming soon). Oh, and there was something important as well about using tools made by other individuals as a shortcut for time spent Making.