Another quick poll: is there anyone here at all who does not believe that, by 2027, 1 BTC will buy all the wealth in the world? 
We always have you.
If everybody else believe that, they are obviously wrong.
The best outcome (for bitcoin) will be that all bitcoins, not one, will have all the savings value in the world, all the value that people will have in reserve for a shorter or longer time. This is not related at all to all the real value that exists. What people want to have in reserve in money, compared to what value they will have in houses, cars, excavators, factories, toothbrushes and son on, is a personal choice for each individual. It can be less than they have in real value, or more.
The fact that better money will be available, may change the preferences.
Nobody knows. Wait and see.
I believe that in the nomadic times (such as some part of the Old Testament), the liquid wealth (money) of the world was far in excess to the physical wealth. Land did not have much value then, and people could not have much stuff b/c they carried them all with them. So in that kind of society the value of all money >> the value of "real wealth".
Some have argued that in the heyday of industrialism, both the factories and land had much value, so the money ~== real wealth (or even real wealth > money).
Now I would say that real estate is quite expensive, possibly overvalued. Corporations perhaps more so. We may be entering new "nomadic era" as evidenced by the minimalist tendencies of many people who are rich in liquid assets. Even I personally own much more liquid assets (mainly BTC) than the value of my physical assets (mainly castle). It is not inconceivable that the value of all bitcoins goes north of the value of everything else. I am looking at a conservative 25-50% myself but Stephen Reed has argued that bitcoin's holding is so easy that they might be just held and everything else goes into permanent price deflation.
If the price goes up really fast, the big holders are not able to utilize the alternative opportunities and will have to just hold the majority of their stash, creating the very cycle described by Stephen.
My own experience from buying the castle is that it has made me really busy (and will in the coming years), and curtail my interest in any further bitcoin sales, since I can only handle so much real wealth, but hold any number of bitcoins.
This is barring any coercive intervention of course.
You got that right, basically.
Two worlds, one where everybody is in debt, another one where everybody has lots of money savings, are both possible, everything else the same.
The difference comes from what people want, and, the fact that nowadays saving in money is not possible, because someone fucks the money system. They also fuck with peoples minds, like Krugman, who wants us to believe that it is better for everybody when we are all in debt.
( $1.5m borrowed yesterday) , $21.5 million in longs currently, the fall gonna be epic.. I hereby revise my prediction: 500 in 2 weeks 
