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Re:Bitcoin has risen more than eightfold in past year by ISL on Tuesday August 15, 2017 @01:08PM (#15020112)
A price is set when a buyer and seller agree on a price. If all sellers want a high price, then the price will be high.

The bitcoin price is rising as much because current holders would rather hold as because buyers are willing to pay more than they were in the past.

A Ponzi scheme promises a return, and uses new money to fund returns to existing investors. Cryptocurrencies themselves make no such promise -- those buying with intent to sell in the future are buying with the belief that the future price will be higher, but such a reality is hardly certain.

Re:Bitcoin has risen more than eightfold in past year by SippinLean on Tuesday August 15, 2017 @01:17PM (#15020212)
and even if that reality was certain, there's no one "running" Bitcoin to determine who to pay dividends to (such as in a Ponzi)
Re:Bitcoin has risen more than eightfold in past year by bandrami on Tuesday August 15, 2017 @01:49PM (#15020547)
Only if you ignore the exchanges, who have been marketing them to people.
Re:Bitcoin has risen more than eightfold in past year by SippinLean on Tuesday August 15, 2017 @02:11PM (#15020790)
The exchanges cannot decide who receives dividends and who does not, very much unlike a Ponzi.