What do you mean we haven't proven that we have a multibillion...

What do you mean we haven't proven that we have a multibillion dollar resource? Do you think they are lying about the resource estimate? Do you not believe the current value of lithium? Which part isn't proven?

Share prices go up and down every day for many reasons - most of which have nothing to do with long term fundamentals. ESS may be a bad investment if you plan to sell next week. That seems to be your investment horizon.

Those of us planning to hold medium/long term have a very different outlook. Temporary dips in price represent an opportunity to top up, not a reason to panic sell.