> you know your program can get even faster than corresponding C/C++ programs

I have seen this argument a few times here are HN. To be clear, I interpret your phrase that Rust "will eventually" be faster than C or C++. (If I read wrong, please correct.) However, I have never seen any compelling evidence that demonstrates equivalent Rust code is faster than C or C++ code. Some lightly Googling tells me that their speeds are roughly equivalent (within 1-2%).