The talk by Jimmy Zelinskie at FOSDEM 2024 discusses the evolution of access control models and their historical development, from traditional models like DAC and MAC to more modern approaches such as ABAC and ReBAC. The discussion also touches on the challenges posed by web security threats, including Broken Access Control's rise to OWASP's top threat list. SpiceDB is introduced as a parallel graph database designed for authorization checks, built upon Google's Zanzibar project and extending its concepts to be more flexible and applicable outside of Google's infrastructure.