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In many cases, the creators do in fact call out perceived flaws in bitcoin and how a particular competing protocol intends to improve on its 'limitations'. Despite thousands of competitors, bitcoin accounts for -70% of all cryptocurrencies in terms of market value, and when adjusted for liquidity, the estimate is closer to -90%. Whereas one currency accounts for 70% to 90% of value depending on the metric, thousands of competing cryptocurrencies account for 10% to 30%.