For the most part, this seems elegant.

This also seems like the point where you would want to just add some special rules to the compiler to automatically generate and carry the tokens around or remove the need for the feature annotation for the CPU instruction tokens.

I should say I’m not a Rust developer. I’ve tinkered with it a little bit. So this is an outside perspective from someone not familiar with the current state past whatever the article says.

This is a pretty old article. Fearless SIMD is now at 1.0