Well, you have psychological distance or physical distance.

既可以利用心理距离，也可以利用物理距离。

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Well it has to do with our distance from food, our psychological and physical distance from food, and the fact that we don't appreciate it as much as we do because it's everywhere all the time and we've been trained to eat outside of the normal meal times.

我想这和我们与食物之间的距离有关,包括与食物之间的心理距离和身体上距离,事实上,我们没有给予食物足够的重视,因为食物随手可得,无处不在,而且我们都习惯在非用餐时间吃东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选