I believe that we have moved up one order of magnitude since the dot com bubble. This means that was 10 trillion 20 years ago will now be 100 trillion. In USD valuation, I would not be surprised at all to see 100s of trillions in the next few years. Central banks will be scrambling to claim their percentages in the new economy.
Also, this is a completely new financial paradigm. Looking at it in pure USD capitalization is maybe a limited point of view.