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Yes, I understood that part, which I did not quote.

I was commenting on the "happened before" part.

If you were thinking of the "it's simple and cheap to implement because its something that's already been done before" part here, I think they meant that implementing random'ish NMs around the world...

I do think this was suggested or at least talked about back 10 years ago already, but I don't remember that there ever was any official remarks on it (or a proper, clear proposal for them to remark...