After sadly shelving jstarb, I leaned a little more into 210 material (I also recently watched danderson’s talk on lazy ranges at CppCon 2025) and I thought it might be cool to implement these things in Zig. I was really surprised to see zig had a native @reduce built-in… so I figure they care about parallel execution somewhat. Though the builtin reduce is for SIMD instructions (instruction-level parallelism), not thread-level parallelism.