translation.en: So about 20 years ago, I literally started in my garage tinkering around, trying to figure out how to separate these very similar materials from each other, and eventually enlisted a lot of my friends, in the mining world actually, and in the plastics world, and we started going around to mining laboratories around the world.
translation.zh: 所以大约20年前，我在车库里开始着手 尝试如何把这些非常相似的材料 互相分离 最终我结交了很多朋友 采矿业的朋友，塑料领域的朋友 我们开始拜访世界各地的采矿实验室