Asteroid Mining

[Tellos Athenaios]

If you had 3 Olympic swimming pools full of gold you would have all the worlds gold.

Mined, perhaps. As you'll know there's lot's of gold in the ocean water. It's just not worth it to extract it.

Some of the materials we use in modern electronics are of a similar rarity. Meaning that mining asteroids could be economically viable.

Nope: http://www.theregister.co.uk/2011/11...igh_tech_gear/

It'll be economically viable to mine the landfill sites before* it'll be viable to send tonnes of stuff into space and expect actual profits at anywhere near consumer level market prices.

* Depending on whether or not we find a new "magic" energy/power source to deliver both raw power and efficiency aplenty for broad industry applications, not just government research.