Palladium today is $1704.73 per ounce, but the price of palladium comes from the fact that it's extremely rare on Earth. But what if someone comes back from an asteroid with an amount of palladium that suddenly triples the worldwide supply? What will the effects be on the price point? I'm sure the costs of getting it back planetside will be factored in and slow down any inflation, but I am still curious.

And what kind of things could we create, given a vastly increased supply of rare elements?