Wow! The title is perfectly succinct. I have never heard of this concept before and upon reading the title realized that many powerful techniques will be based

Wow! The title is perfectly succinct. I have never heard of this concept before and upon reading the title realized that many powerful techniques will be based upon it. Perhaps several already are. It seems such an “obvious” solution, but I can’t say that it would have ever occurred to me. I don’t work in ML, but fascinating little gems like this are what keeps me coming back to HN