Pretty much everything you, I, or someone else is likely to come up with, someone else will have thought of before. That's why we usually attribute inventions a

Pretty much everything you, I, or someone else is likely to come up with, someone else will have thought of before. That's why we usually attribute inventions and discoveries to the first people to bring to market or publish. Given the simplicity of this, obviously other people have found this algorithm before. But this might be the first publication mentioning it.