But Elon's data on it does not exist because the claim is fanciful. Vague is a MASSIVE overstatement.
Elon doesnt say their tech is cost effective, he just relies on the old "there is so much lithium in the world" claim to fool the ignorant. In truth all he said was that there is enough lithium in Nevada... there was no claim that it will be used to cover the markets requirements (it cant). There are many reasons why Elon would say what he said. Many have been pointed out on this thread already.
In the end you need to look at what Elon and Co are doing. Not the words coming out of their mouths.
Just like following the advice of the "expert" institutions really...
FYI Non-holders that are backing that performance from Elon, wont get much from me. So sorry about that.
But in the end, dont worry if you dont "get it", it will all come out in the wash.
