translation.en: What happened in agriculture? Well, if you take agriculture over a century, agriculture in about 1900 would have been recognizable to somebody planting a thousand years earlier. Yeah, the plows look different. The machines were tractors or stuff instead of mules, but the farmer would have understood: this is what the guy's doing, this is why he's doing it, this is where he's going. What really started to change in agriculture is when
translation.zh: 农业发生了怎样的变化？如果你回头看 一个世纪以前的农业， 1900年的农业跟一千年前的 种植方法没有很大的区别。是的，看起来，犁的样子 有些不同。人们用上了拖拉机等机械 而不是骡子，但是农民们 知道，这仍是人在操作， 他还是要这么做，没什么太大的不同。 农业真正开始改变