Doesn't gaining 600 points mean that you are able to beat the "old you" (or more precisely, people who you used to be even with) with 99% probability? (Or perhaps more meaningfully, you can now beat someone who could beat someone who could beat someone who could beat someone who can beat the old you, all with 80% probability?)
(I made up the exact numbers, but the idea is there.)
That seems like a meaningful interpretation of "600 points" that applies to anyone -- though the difficulty of actually making this improvement definitely varies with your starting rating.
(I made up the exact numbers, but the idea is there.)
That seems like a meaningful interpretation of "600 points" that applies to anyone -- though the difficulty of actually making this improvement definitely varies with your starting rating.