From: sylvia@not.at.this.address   
      
   On 24/05/2010 7:50 AM, Alain Fournier wrote:   
      
   > You are correct that if you want to plan an asteroid mining operation   
   > you need to consider the time value of money from the moment you start   
   > preparing your mining operations on Earth and that you will need to   
   > start your investment many years before you start mining. But that would   
   > not be an order of magnitude more time than for your typical mine on   
   > Earth. If asteroid water is sufficiently cheaper than Earth water   
   > it can make sense.   
      
   Not an order of mangnitude, perhaps, but certainly multiples. With an   
   Earth mine, the technology exists, you just have to apply it. For an   
   asteroid mine, you're starting from a lot further back - you have to   
   develop the technology first.   
      
   Sylvia.   
      
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