When you already know what happens, you get a feeling of familiarity and routine.

当你已经知道接下来会发生什么，你就会有一种熟悉和常规的感觉。

If the room had remained unchanged, we might have had only the feeling of familiarity without the definite remembering; it is the change that drives us from the present to memory of the past.

如果房间没有变化，我们可能只有熟悉的感觉，而没有确切的记忆；正是这种变化驱使我们从现在回到对过去的记忆。