If you think about our hands, these tools that are connected to us, and what they're capable of doing -- building houses and furniture, and painting giant murals -- and most of the time we hold a controller or a cell phone.
如果你思考我们的双手， 这双与我们连接在一起的工具， 他们能做什么-- 建造房屋和制造家具， 绘制巨型的壁画-- 在绝大部分时间里 我们握着遥控器或是手机。