I' ll take bitcoin as an example.
Is it mandatory that the value of all bitcoins is equal to the value of the world economy?
Can this value be archived before all the bitcoins are mined?
When I buy bitcoin someone will take my dollars.
So how can we technically replace all dollars with the bitcoins?
In the end will there always be someone with only dollars in their pockets or am i wrong?
If bitcoin wants to replace dollars well it will be more difficult for bitcoin to defeat dollars in very easy way there is many strategies that bitcoin do befpthat will be done all. In order to become the main currency in the whole world bitcoin needs the people to subscribe bitcoin.