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The value of Bitcoin can theoretically continue to double again and again because the gains it makes can't be inflated away by a central authority and given to the top 1%.

The limit of blockchain's value is the same of technology in general: no limit.

It all depends on how much of the old paper is allowed to get transferred into the digital.
Each transfer out is a block removed from the Jenga pile. Most of the derivatives will evaporate. But, at what point.

And of course, with a non-inflationary currency every thing brought to market makes cryptos more valuable.

If we get to $200,000 this bull run, i do not doubt that bitcoin will go from through $1M to $2M during the next.

There are too many pieces and too many wild cards to determine the height of this bull run.
But, i can guarantee that it will be a hellava ride.