[saywatnow]

Nice to see a fairly thorough set of examples, but my only conclusion is that C++ really has become a parody of itself.

The language describing each policy is awful, but okay.

"so concise code" for 10 lines consisting mostly of ceremony to get the results of one std function into a vector?

Does the first example with std::transform::reduce really need `std::uintmax_t{ 0 }` twice instead of `0`?

2x-3x speed up for specifying a parallel execution policy on reasonably large examples seems deeply disappointing. Author didn't specify how many cores the examples were run on, but ouch.

Best of all is the volume of comments here predicting that these annotations will eventually be deprecated ..

I really want to like C++.