Even covering the entire world GDP it wouldn’t get there. It would put it somewhere between 3-5M USD.
These are just funny numbers. But the 1M M2 relationship (1cent per sat) could be an additional reason 21 is the magic number.
Discussion
Everything will trend towards zero relative to ₿tc. At a certain point the ₿tc/dollar comparison will no longer make sense because the dollar will inflate to infinity.