The issue of vagueness is summarized in a more technical way by the philosopher Karl Popper who described--who introduced the term of falsifiability.

关于概念模糊的问题,哲学家卡尔·波普用一个更加专业的术语,进行了总结,他提出了“可证伪性“这个术语。

耶鲁公开课 - 心理学导论课程节选

You also do walking meditation, you can do mantra meditation, you can do all sorts of meditations that can be seen as a step towards maintaining the state of mindfulness at all points of your daily life, which is impossible unless you're a monk for a very long time.

还有行禅，曼怛罗冥想，你可以进行各种冥想修行,都可被视为正迈向,在日常生活的每时每刻,保持警醒，这几乎不可能实现,除非你是修行多年的僧侣。

普林斯顿公开课 - 人性课程节选

The calorie density has changed because food is processed, so the calories in the fat and the sugar that can get squeezed into things made possible by technological changes has shifted things a lot.

食品经过加工,热量密度发生了变化,添加到食品中的脂肪和糖类,其卡路里含量可通过技术手段进行调整,进而造成很大不同

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So but the diary is a way to get more sophisticated information on individuals for dietary counseling purposes and the like, but it's pretty labor intensive and then it requires either a computer to analyze the diet or some human being who is trained in this to sit down and make sense of the data.

日记这个办法,可获得更加精确的个体信息,用以进行饮食咨询等,但这更像是劳动密集型工作,然后还需要一台电脑,来分析食物数据,有些人学的就是,坐在电脑前弄明白这些数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选