translation.en: Able to switch back and forth more easily would be a neat thing to be able to do -- easier to achieve the flow state, when you're totally immersed in something you are doing.
translation.zh: 能够进退更加自如 是件很棒的事， 它可以让我们更加容易进入心流状态， 即一种完全沉浸于所做之事时的状态。