This document discusses the concept of fintech, or financial technology. It explains that fintech combines finance and technology and has become popular due to factors like open source libraries, cloud computing, APIs, and increased mobility. The document outlines different eras and concepts in fintech, including early online banking (Fintech 1.0), the rise of mobile apps and services (Fintech 2.0), personal financial management tools, robo-advisors, peer-to-peer lending, crowdfunding, mobile payments, blockchain technology, and how insurance is adapting to fintech. It provides examples for many of these fintech areas and concepts.