Well he didn’t say it will happen but he stated it as “an amusing thought experiment”. On other hand if that happens and Bitcoin becomes the standard global currency in the world then measuring bitcoin against dollar will be as useless as it’s today… 1 BTC = 1 BTC
Anyway yes it might be insane but not when you take it as an amusing thought experiment.
As an amusing thought experiment, imagine that Bitcoin is successful and becomes the dominant payment system in use throughout the world. Then the total value of the currency should be equal to the total value of all the wealth in the world. Current estimates of total worldwide household wealth that I have found range from $100 trillion to $300 trillion. With 20 million coins, that gives each coin a value of about $10 million.
He does say that if Bitcoin were to become the dominant payment system of the world that the total value of the currency would equal the total value of ALL wealth in the world which is complete horse shit. To me he tries to cover up that quite inaccurate statement by prefacing that its just a thought experiment well even if that thought experiment did materialize and become a reality Bitcoin would not be the equivalent of all the wealth in the world.