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Correct but the steem power was unchanged and the estimated value nearly doubled. I speculate that the calculation of steem power has become more valuable.

Your estimated values is calculated by 7 days median (average) price of steem on market. I think 2 days ago it peaked at 4 $ so you may see it rising for few mor days then calming down, or maybe only the sky is limit.

Aaaaah, ok that's interesting then.