Why Experts Disagree

When two specialists who have read the same research reach opposite conclusions, the public often concludes that nobody knows anything. That reaction is understandable, but it usually misreads what is happening.

当两位读过同样研究的专家得出相反结论时，公众往往会认为：那谁都不懂。这种反应可以理解，但它通常误读了正在发生的事。

Experts rarely disagree about the raw evidence. They disagree about which risks matter more, how much weight to give a weak signal, and what to do when the data are incomplete.

专家们很少对原始证据本身有分歧。他们分歧的是：哪种风险更重要、给一个微弱信号多大的份量、以及数据不完整时该怎么办。

These are questions about values and priorities, not only about facts. Two economists can accept the same figures and still prefer different policies because they care about different groups.

这些问题关乎价值与优先级，而不只是关乎事实。两位经济学家可以认同同一组数字，却仍然主张不同的政策，因为他们在意的是不同的人群。

There is also an honest professional caution that outsiders read as evasion. A researcher who says the evidence is mixed is usually being accurate rather than useless.

还有一种诚实的专业谨慎，常被外行读成「在回避」。一位说「证据尚不一致」的研究者，通常是在准确表述，而不是没用。

The sensible response is to ask what the disagreement is really about. Often the argument is not over truth, but over what we should be willing to accept as the price of acting.

明智的应对是去问：这个分歧究竟争的是什么。很多时候争的不是真相，而是「为了行动，我们愿意接受什么代价」。