We're not talking 20-30 years. Even by your more optimistic estimate of 4TWh of global battery production by 2030, it would still take 5-7 years worth of global

We're not talking 20-30 years. Even by your more optimistic estimate of 4TWh of global battery production by 2030, it would still take 5-7 years worth of global battery production supply to fulfill just the United States' storage needs. Currently the US accounts for ~17% of global energy consumption, but that share is going to be lower in the future as less developed countries expand their energy production capacity. And on top of that, we're not going to be dedicating the entirety of our battery production to energy storage because we'll still be building electronics and electric vehicles.