Wong discusses the journey towards improving privacy on the web and the development of the Privacy Sandbox. The Privacy Sandbox is a set of privacy-preserving technologies that support various web functionalities, including online advertising. Wong explains the different APIs within the Privacy Sandbox and how they can be used to replace third-party cookies while protecting user privacy. He also addresses concerns about transparency, confusion in the industry, and the role of AI in the future of advertising. Wong emphasizes the importance of collaboration and adoption within the industry to ensure a successful transition to a more private web.