Raymond Chau discusses the importance and benefits of digital analytics. He explains that digital analytics involves collecting data from websites, apps, social media, and other online sources to better understand user behavior and make improvements. Some key benefits include optimizing marketing spending, fixing issues on websites to reduce bounce rates, running A/B tests to optimize pages, and personalizing the user experience through recommendations and targeted advertising. While traditional marketing can be difficult to measure and optimize, digital analytics allows for real-time data collection, targeted messaging, and faster iteration to improve performance.