it is the story of a bitcoin, it is not easy to convince people that bitcoin is not a ponzi, but we can not say 100 ℅ that bitcoin net of sekema Ponzi, Ponzi many who use bitcoin, but bitcoin is not a ponzi
An article in the financial times thinks the bitcoin is a ponzi.
bitcoin is Unique algorithms are resolved (miner), very different with ponzi. many are using a ponzi scheme in cloud mining