We look out, we see where we like to go, we know where our arms are at, we take that information to the rear part of the brain, they were within visual, which start forming initial plans to move our arms, we elaborate those plans.

我们去看外界，我们看到自己想去的地方，我们知道自己胳膊的所在，我们将这一信息传递给大脑后面，负责视觉的部分，该部分开始为我们移动胳膊制定最初的计划，我们详细描述这些计划。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

By "Present," We mean-- we will pick some part of the universe we want to study and we will ask, "What information do I need to know for that system at the initial time, like, right now, in order to be able to predict the future?"

我们所说的"现在",意思是,我们会选取客观世界某一部分来进行研究,然后我们就会问,我们需要什么信息去了解,初始时刻的系统,比如现在,进而能使我们能够预测未来呢

耶鲁公开课 - 基础物理课程节选