This topic is as fascinating to me as it is impenetrable. I'd love to understand what he's saying but get balled up in the abbreviations and not understanding h

This topic is as fascinating to me as it is impenetrable. I'd love to understand what he's saying but get balled up in the abbreviations and not understanding how to calculate how much lithium is usable from each mined mineral. Not to be too USA Today, but my understanding would certainly benefit from a couple pictures/graphs.