As a self proclaimed expert on sort implementations, the work DeepMind published in that field was also deeply lacking. Essentially presenting tiny 50 year old sorting networks as novel result. And adding them into libc++ in a way that exclusively looks good in hot microbenchmarks. But degrades performance if your program does more than only spin a hot loop that sorts fixed size inputs of 3 or 4 elements.
I'm starting to see a pattern with DeepMind and the quality of their papers.
