回复：比特币可以细分到什么程度，以及其他市场／经济问题
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如果它真的发展得非常庞大，最终全世界 68 亿人最多也只有 2100 万枚币。
不过不用担心，还有 6 位没有显示出来的小数，内部总共使用 8 位小数。显示的是 1.00，但内部是 1.00000000。如果未来发生大规模通货紧缩，软件可以显示更多小数位。
如果处理小数值变得很麻烦，我们可以改变显示中小数点的位置。同样多的钱，只是改变“,”和“.”所在位置的惯例。例如，把小数点移动 3 位，就意味着如果你之前有 1.00000，现在会显示为 1,000.00。
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Eventually at most only 21 million coins for 6.8 billion people in the world if it really gets huge.
But don't worry, there are another 6 decimal places that aren't shown, for a total of 8 decimal places internally. It shows 1.00 but internally it's 1.00000000. If there's massive deflation in the future, the software could show more decimal places.
If it gets tiresome working with small numbers, we could change where the display shows the decimal point. Same amount of money, just different convention for where the ","'s and "."'s go. e.g. moving the decimal place 3 places would mean if you had 1.00000 before, now it shows it as 1,000.00.