The article critiques the implementation and effectiveness of C++ modules, arguing that if they cannot achieve significant improvements in compilation speed, they should be reconsidered. It discusses the challenges faced in integrating modules into compilers and build systems, highlighting a lack of effective leadership and a flawed design approach that has hindered progress. The author advocates for a more iterative and pragmatic approach to development, emphasizing the need for measurable outcomes to justify continued investment in the feature.

C++26 introduces reflection capabilities, allowing compile-time processing of JSON data to create C++ objects. Using a simple example, the author explains how to parse a JSON file and transform it into a structured C++ object, highlighting the contributions of Dan Katz and the utility of the new reflection features in C++. The article also discusses the process of generalizing the parsing function to handle multiple key-value pairs in JSON objects.