Precious metals might be scarce on earth, but they are not scarce in space.
If we start mining asteroids, have fun watching the precious metal prices crash!
With the known abundance's of metals in meteorites, even a very cautious estimate suggests 20,000 million tonnes of aluminium along with similar amounts of gold, platinum and other rarer metals.
http://news.bbc.co.uk/2/hi/science/nature/401227.stmA total of 171,300 tonnes of gold have been mined in human history
https://en.wikipedia.org/wiki/GoldIn case you didn't read that correctly, thats 20'000'000'000 tonnes in 1 asteroid versus 171'300 tonnes every mined in human history.
All of a sudden, Bitcoins start to make a lot of sense
