9:59:59.000,9:59:59.000 - [Tyler] Once you master [br]the economic way of thinking, 9:59:59.000,9:59:59.000 you'll see the world [br]in a very different way. 9:59:59.000,9:59:59.000 Two fundamental economic concepts [br]are everywhere you look -- 9:59:59.000,9:59:59.000 opportunity costs, and tradeoffs. 9:59:59.000,9:59:59.000 Let's start with opportunity costs. 9:59:59.000,9:59:59.000 At this busy coffee shop, 9:59:59.000,9:59:59.000 opportunity costs lie [br]behind every decision. 9:59:59.000,9:59:59.000 Like for Jenny -- she's here [br]for her third date with Adam. 9:59:59.000,9:59:59.000 Was that a good decision? 9:59:59.000,9:59:59.000 After all, economics is [br]all about studying decisions. 9:59:59.000,9:59:59.000 Making a good decision is [br]about comparing the benefits 9:59:59.000,9:59:59.000 of that decision to the costs. 9:59:59.000,9:59:59.000 The obvious costs for this date 9:59:59.000,9:59:59.000 for Jenny were the Uber ride[br]she paid for to get here, 9:59:59.000,9:59:59.000 and her grande chai tea latte[br]with whole milk. 9:59:59.000,9:59:59.000 But what's missing? 9:59:59.000,9:59:59.000 Her opportunity cost. 9:59:59.000,9:59:59.000 Opportunity cost means the value [br]of the next best alternative.