研究表明，人类在处理信息和同时进行多项任务的时候，存在着能力上的局限性，这表现为关注现象。

Researches show that when people process the information and simultaneously do multiple jobs, there are limitations on their abilities, which is expressed by attention.

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同时进行多项任务是有代价的。无论是在家还是在工作中，分心都会导致糟糕的选择、令人痛苦的失误，以及不必要的压力。

Multitasking takes a toll. At home or at work, distractions lead to poor choices, painful mistakes, and unnecessary stress.

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因此，多项任务同时进行，必然导致低效率和失误。除非其中某项任务简单至极。

Multitasking is, therefore, a recipe for inefficiency and error, unless one of the tasks is dead easy.

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