Explore modern generic programming techniques in C++ using the Tick and Fit libraries in this 53-minute CppNow conference talk by Paul Fultz II. Dive into the importance of concept-based type requirements for clear compile errors and learn how to specify and check these requirements using the Tick library. Discover how the Fit library enhances generic programming by providing abstractions over functions and sophisticated overloading capabilities. Compare these solutions with the Concepts Lite proposal and Boost.ConceptCheck. Gain insights into topics such as type requirements, Boost Concept Check limitations, ConceptLite, Tick refinements, dependent typing, integral constants, type traits, function objects, lambdas, adapters, conditional overloading, and error handling. Understand the benefits of library-based solutions versus language features for concept checking in C++ generic programming.