Rust is much safer for parallelism and has a lot of safety rules around closures, so this would probably be achievable in Rust without much pain via a clever te

Rust is much safer for parallelism and has a lot of safety rules around closures, so this would probably be achievable in Rust without much pain via a clever template library. The problem is that not all problems are easy to parallelism at the algorithmic level, and for some it may be impossible. Alongside massively multi core chips I would also love to see more efforts to push the envelope on single threaded performance.