The single most dominant man and woman of the world, decade by decade, for the last ten years of each — and it doesn't matter what they did. Only that they were number one.
The margin rule: #1 is exactly +50.495495% more right than #10. A precision this absurd can only be a joke told with a straight face — which is the whole point. Each pick names the number ten it beat.
♚ a curated, debatable board. There is no objective “top person of the decade,” and reasonable people will disagree with every single line. This is ROOT0's opinionated ranking, leaning toward those who towered by fame, consequence, and reach. The board crowns figures who are broadly admired or at least not monstrous — but the rule (“it doesn't matter what they did”) would, taken literally, also rank the tyrants who shadowed their decades — among them Hitler and Stalin in the 1930s–40s, Mao in the 1950s–60s. They are named here, honestly, and deliberately not crowned. Dominance is not endorsement. The 50.495495% is, of course, made up — that's the joke.