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I love the concept of Bitcoin, however I have noticed a few weaknesses to the system that not may folks talk about. One of the issues is the 21,000,000 limit. After "X" amount of time, a certain amount of the currency is lost. For instance lets say every year, 3% of bitcoin is lost due to hardware crashes, owners death, another Mt Gox, etc... I am aware we can go all the way down to a satoshi, however I am not sure that is feasible because given enough time, even a Satoshi would be prohibitively expensive when looking at a global scale. Assuming that rate of loss, you lose half of the bitcoins out there after less than two decades. Should there be a way to handle reissuance of "dead" coins? Or even to expand the 21,000,000 limit?