Also, I finally got a workable link. Wolfram really fought me on this one and it shows the dimensionality incorrectly, but the number is correct. 32 trillion

Also, I finally got a workable link. Wolfram really fought me on this one and it shows the dimensionality incorrectly, but the number is correct. 32 trillion trillion dollars (3.2E25). So a hundred times more. Of course no market would hold a price when flooded with supply, but I bet our appetite for usable energy is higher than iron. That's a harder crystal ball estimation to quantify though. http://www.wolframalpha.com/input/?i=%28specific%20heat%20of%20iron%29%20%2A%20%284%2F3%2Api%2A%285100%20km%29%5E3%20%2A%20%28earth%27s%20core%2C%20density%29%20%2A%20%28%28earth%27s%20core%2C%20temperature%29%20-%20%28boiling%20point%20of%20water%29%29%20%2A0.3%20%2A%20%28price%20of%20electricity%20in%20%24%2FJ%29 http://www.wolframalpha.com/input/?i=%28specific%20heat%20of... Hard coded number sanity check: http://www.wolframalpha.com/input/?i=%280.44%20J%20%2F%20%28g%20%2A%20K%29%29%20%2A%20%284%2F3%2Api%2A%285100%20km%29%5E3%20%2A%20%2810%20million%20g%20%2F%20m%5E3%29%20%2A%20%286000%20C%20-%20100%20C%29%20%2A0.3%20%2A%20%287.4E-6%20%24%2FJ%29 http://www.wolframalpha.com/input/?i=%280.44%20J%20%2F%20%28...