Everybody is worried about soaring oil prices. But I’ve been watching another resource that’s in high demand: lithium.  Its price has shot up 434% year over year, leaving oil in the dust. Users are beginning to panic. In April, Elon Musk tweeted that lithium prices were hitting ​“insane levels.”  ​“Tesla might actually have to get into the mining & refining directly at scale, unless costs improve,” he said.