任何预测总是有缺陷的,但是有一个方法可以使得我们的预测更加具有权威性,那就是抓住自然界中驱动整个宇宙的4种基本的力。每当我们理解和描述了其中的一种力,它就会改变人类的历史。第一种要解释的力是重力。艾萨克·牛顿给了我们力学,它能够解释在力的作用下物体的运动,而不是靠神灵和玄学。这有助于为工业革命铺平道路和引进蒸汽动力,特别是机车。 Any prediction is always flawed, but there is a way to make our predictions more authoritative: the four basic forces that power the universe in nature. Whenever we understand and describe one of these forces, it changes the history of mankind. The first force to explain is gravity. Isaac Newton gave us mechanics, which can explain the movement of objects under force, not by gods and metaphysics. This helps to pave the way for the industrial revolution and the introduction of steam power, especially locomotives.