I've never met anyone who knows the entirety of C++ today. Some people kept up with C++11 maybe, but anything beyond that is quickly getting into the territory

I've never met anyone who knows the entirety of C++ today. Some people kept up with C++11 maybe, but anything beyond that is quickly getting into the territory where there's bits of the language that are truly arcane to even very experienced devs. even then what does it mean to "know c++"? Do you mean the spec? Specific implementations? IMHO the language and implementation have been far from simple for almost a decade now. I don't think that's necessarily a negative though.