The Big Short!, page-18

To all the people trying to value a company on one drill hole result - you can't value a company share price or measure the size of an orebody with only a few exploration holes, its way too early in the day for any calculations about tonnes and grade yet.

They haven't closed off any mineralization or demonstrated any accurate dimensions, density, average grades or tonnage of ore yet - this usually takes tens or even hundreds of drill holes to establish a mineral resource number to any degree of confidence.