Second, a sense of crisis, a radical break in culture, an overturning of conventional artistic forms that goes with a sense that civilization itself is being overturned.

第二，危机感，文化上根本性突破，与文明本身被颠覆同时进行的,颠覆传统艺术模式的运动。

耶鲁公开课 - 1945年后的美国小说课程节选

If that's all it knows, then in that scenario there is no building or anything else; it continues a trajectory both forward in time and backward in time, and it says that whatever seconds, one second before you set your clock to 0, it would've been on the ground.

如果是这样,在那种模式下,没有楼房或者别的什么,物体的运动轨迹可以沿时间可以向后延伸,也可以向前延伸,不管时间取什么值,在零点前一秒时,物体就在地面上

耶鲁公开课 - 基础物理课程节选