I think you misunderstand my point: The problem is that it took until around 2020 for this work to start. Around 2015, a lot of would-be adopters from C and C+

I think you misunderstand my point: The problem is that it took until around 2020 for this work to start. Around 2015, a lot of would-be adopters from C and C++ didn't jump on the Go bandwagon because of the perf gap. I use Go a lot today, as a former user of both C and C++, but Rust is probably better as a C/C++ replacement.