Explore the fundamentals of functional programming in this comprehensive conference talk that demystifies complex jargon and concepts. Learn about immutability, record types, bindings, pure and impure functions, referential transparency, first-class functions, currying, partial application, algebraic data types, value semantics, recursion, match expressions, tail recursion, and list operations. Gain practical insights into implementing these concepts using F# and discover how functional programming principles are increasingly influencing modern software development across various programming languages and libraries.