A digestive system simulator. Input your biomarkers and some other statistics about yourself and your level of activity. Select a food and quantity. It will tell you how your body would process it. How much would turn to fat, how it will affect your blood sugar, and other consequences of eating it. It could possibly be paired with a blood sugar monitoring device that is always attached to your finger. You'll be able to do fun stuff, like find out how many Pop Tarts you need to eat to get diabetes, etc. We are getting sick eating modern food and most of us are oblivious to it. This will help open some eyes.