Comment Re:National level? (Score 2) 171
A couple of billionaires are exploring that issue right now. The quantities of precious and heavy metals contained in some asteroids is valued in the trillions.
The preciousness of those materials is in its rarity. If the amount of gold on earth suddenly triples, it'll presumably affect its value. Well, unless we make some arbitrary distinction like the one that attaches different value to artificial vs natural diamond, which everybody accepts for romantic reasons (and to keep De Beers filthy rich).