Explore the inner workings of C++ through the eyes of the compiler in this comprehensive conference talk from CppNow 2021. Dive deep into C++ Insights, examining implicit conversions, in-class initializers, and the intricacies of lambda generation. Gain a new perspective on code writing by understanding how the compiler interprets various C++ features, including variadic templates. Learn from Andreas Fertig, an experienced C++ trainer and member of the standardization committee, as he demonstrates the power of C++ Insights (https://cppinsights.io) to reveal the hidden mechanisms behind C++ constructs. Discover how recent C++ standards have evolved the language, comparing C++14 and C++20 implementations. Walk away with a deeper understanding of compiler behavior and practical insights to enhance your C++ programming skills.