> One can imagine modifying the compiler to output llvm bitcode. You now can throw plenty of optimisation at it for free (but you are now slower to compile).
If you look at the FAQ, you'll see they can do exactly that but using gcc/Clang, not LLVM.
>You'll never see JPEG-XS images stored on disk or sent over the web.
I don't see why not. The image quality is near perfect, according to the article, for not even double the average file size, and it uses much less energy to encode and decode, so it's better for your battery life on mobile devices.
I'm OK with this, under the condition that Facebook only uses it to alert you of photos you likely appear in, i.e. those two first examples of what it can do.
I would not allow them to show those results to other people.
It probably is a learning system... It got trained more. The review itself doesn't have to change. The system merely adjusted its parameters due to more exposure to new reviews.