1) The document discusses building a social media tool called "Project Fatty" to help college students eat healthier and lose weight by connecting their food purchases to an activity stream where friends can comment and provide support. 2) It notes that many diets fail because people have unrealistic expectations and goals, but social accountability through connecting purchases to friends may help with long term weight loss. 3) The tool would allow a hypothetical user named Aarlo to join a community, link his grocery store loyalty card to share purchases, and receive support from his network to help make healthier choices and stay on track with his goals.