Right. In P6 (potential) parallelism is explicit. You have to use an explicit construct such as the `<<` or `>>` meta operators. I used a simple arithmetic op

Right. In P6 (potential) parallelism is explicit. You have to use an explicit construct such as the `<<` or `>>` meta operators. I used a simple arithmetic operation but it can be any code. Of course, it had better be parallel safe. The code-gen at compile time makes an AOT call on whether to attempt parallelization. If the JIT thinks that's not working out during a particular run it may decide to de-optimize. > more generally, any loop where ... each iteration of the loop is independent of the others Right. The `<<` and `>>` meta operators aren't the only relevant features. For example there's a `.race` method that not only (potentially) parallelizes a map, grep or whatever, but provides further explicit control such as batching size.