Throwaway. Having worked in the same company as the author I have to say that I highly respect their work for the c++ language, the continuous effort it takes bringing those abstract concepts into the standard, many not understanding them easily but eventually benefiting from them as an end user. As a distant colleague it was hard to judge their influence on the codebase though. They do have a reputation in the c++ community but it always felt like I didn't see their footprint in our system (as in meaningful PRs) and that they had very strange working hours, strong opinions and preferred working on unrelated semi-personal projects. I wonder if there was any language and community they'd feel comfortable in.