Are There Enough of These Metals in the Ground to Satisfy Demand?

Are there enough of these metals in the ground to satisfy demand? And is it the case that it just takes a while to build the mines, to develop new technology to actually extract them? If you look at a typical kind of mine development time, you could be looking at kind of seven to years. That becomes an issue if that poketit growth takes off faster than expected. So we know that governments around the world are thinking about this and concerned.