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However, the idea of a general trend towards complexity in evolution can also be explained through a passive process. This involves an increase in variance but the most common value, the mode, does not change. Thus, the maximum level of complexity increases over time, but only as an indirect product of there being more organisms in total. This type of random process is also called a bounded random walk.

However, the idea of a general trend towards complexity in evolution can also be explained through a passive process. This involves an increase in variance but the most common value, the mode, does not change. Thus, the maximum level of complexity increases over time, but only as an indirect product of there being more organisms in total. This type of random process is also called a bounded random walk.

然而，复杂性在进化中的普遍趋势的观点也可以通过一个被动的过程来解释。这涉及到方差的增加，但是最常见的值（即模式），并没有改变。因此，复杂性的最大水平随着时间的推移而增加，但仅仅是总体上有更多生物体的间接产物。这种随机过程也称为'''有界随机游走（Bounded random walk）'''。

然而，复杂性在进化中的普遍趋势的观点也可以通过一个被动的过程来解释。这涉及到方差的增加，但是最常见的值（即模式），并没有改变。因此，复杂性的最大水平随着时间的推移而增加，但仅仅是总体上有更多生物体的间接产物。这种随机过程也称为'''有界随机游走 Bounded random walk'''。