Explore the practical implementation of a reactive web application in this 52-minute conference talk from Scala Days Berlin 2016. Dive into the key differences between reactive and traditional web applications, focusing on resilience, elasticity, and responsiveness. Begin with a brief theoretical introduction to asynchronous computation before engaging in a live-coding session. Build, run, deploy, and load-test a small reactive web application using the Play Framework. Examine essential concepts such as Futures, Actors, and Circuit Breakers, and gain insights into the architecture, history, and hardware considerations of reactive systems. Learn how to create responsive user interfaces and implement efficient deployment strategies for reactive web applications.