The concern shouldn't be whether Li continues to be used. It...

The concern shouldn't be whether Li continues to be used. It should be the supply - demand balance. Mining is always boom and bust. There are so many Li projects starting up, and even more following in a tsunami of wannabe developers that the Li price is up for a huge correction downwards. Even the most optimistic view of Li demand won't ameliorate that.

There's still money to be made, but don't be the last man standing when the music stops. It happened in iron ore, it happened in uranium, and it happens in every commodity that becomes a fad. Big producers are letting the price run; it suits them. Once they get threatened by over supply, like the big Fe producers, they will just ramp up supply and crush the marginal producers.