> That's a good point, but those "price signals" could still result in the element being very expensive for quite a while, if we have to scale up production by

> That's a good point, but those "price signals" could still result in the element being very expensive for quite a while, if we have to scale up production by two or three orders of magnitude. I'm not saying new supply will come online instantaneously, but it could be faster than most of us expect if price spikes enough. But in any case, grid-scale liquid-metal batteries would no doubt roll out like most other technologies, which is progressively enough to let supply mostly catch up. In the same way that cell phones or computers didn't go from zero to millions in a day, this will probably be done over many years.