And talk especially to the ones who are leaders in their own field, so that their situation helps you to predict the future of that field in general.

特别是和那些在它们本身领域内是领导的人，这样他们的处境能帮你大体预料那个领域的前景。

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Forecasters, he says, still rely on past usage patterns to predict future ones, and that can lead to faulty forecasts.

NPR: Bumper to Bumper: Predicting Traffic Flow