Sure we can. The ocean brings it to you on the currents. And as you lower the concentration, more lithium dissolves into the water to maintain equilibrium, from the 70% of the earth covered by ocean. Like I said, the downside is expense, not abundance. I just don't like people deceptively saying that the Earth doesn't have enough of something, because it definitely does. It just gets more expensive to extract.

Nothing about seawater extraction makes net-zero any less suicidal, of course.