This document discusses the ride-sharing service Uber and how it disrupted the taxi industry. It provides facts about Uber's origins in San Francisco and expansion internationally. It describes how Uber impacted the taxi market by outcompeting traditional taxis and lowering their profits. The document argues that Uber is a disruptive technology due to how it intruded on the taxi industry and outperformed competitors. Former transportation officials are cited saying Uber has caused one of the most profound revolutions since Henry Ford's Model T.