No. What Walter is talking about in D is if you have Foo[] foo = ...; foreach(f; foo) { f.bar.baz.quux; } and the computation is parallelisable then you

No. What Walter is talking about in D is if you have Foo[] foo = ...; foreach(f; foo) { f.bar.baz.quux; } and the computation is parallelisable then you can write import std.parallelism; foreach(f; parallel(foo)) { f.bar.baz.quux; } and it will parallelised across threads. I guess std.parallelism's parallel might be more analogous to an "instance" of an executor.