Also, the possibility that there might be some positive interaction effects.

同样也有产生正面互相影响的可能性。

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On the one hand, the optimists might say, "Even when we throw in the extra interaction effects, even the negative interaction effects, the overall nature of the human condition is positive.

一方面，乐观主义者可能说，“就算我们把另外的相互影响，就算把负面的相互影响算进去，人类处境的总体本质还是积极的。

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