Yes, C++20 has concepts and modules, the latter still finding its way into production compilers. The story around promoting Rust over C++ has aged badly. Parro

Yes, C++20 has concepts and modules, the latter still finding its way into production compilers. The story around promoting Rust over C++ has aged badly. Parroting arguments that seemed persuasive in 2015, when most people had not even got C++11, taints your argument. People coding modern C++ don't spend time on memory errors, so promoting that detail of Rust makes you seem out of touch, and other statements doubtful. C++ has got markedly more powerful of late, in ways not matched in Rust. This remark, "FFI is painful with ... C++" is frankly nothing short of bizarre. To win over people coding modern C++, you will need to explain how giving up the powerful features C++ programmers are accustomed to using, but cannot in Rust, will make a better experience anyway. You might need to learn something about those features to have something to say.