I mean China has cut off rare earths from time to time, and from time to time we don't see crippling shortages but a rather quick supply response. If you're co

I mean China has cut off rare earths from time to time, and from time to time we don't see crippling shortages but a rather quick supply response. If you're concerned about short / medium term timeframes, I've yet to see a broad analysis that showed stockpiling (can even do it privately!) being insufficient.