 chemicals, the elements? Well, the lithium and the copper and the cobalt and the cadmium and the silver. If you just go down this long litany of metals that have to be mined, we're going to have to be able to mine as much copper. By 2030, every year, we're going to have to be able to mine as much copper each year as was mined up until the year 1980 in the history of mankind. We're going to have to do that every year to feed