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What most people don't understand is how ridiculously rare A full bitcoins are given that there will only ever be 21 million bitcoins. The earth population is over 7 billion, So for most people it will not be about owning one or more bitcoin, it will be about having bits or Satoshis. There are exactly I00,000,000 million Satoshi units in each Bitcoin. When bitcoin enter into its third phase, 100,000 Satoshis will support A family for generations, like one million dollars did back in the 19th century .