I would suggest that the most obvious reason for putting this contest up is because you do have a whole bunch of ideas for solving the problem, are pretty convi

I would suggest that the most obvious reason for putting this contest up is because you do have a whole bunch of ideas for solving the problem, are pretty convinced that the problem can be solved, and would like somebody to go and spend the few years of engineering work needed to turn one of those ideas into a working product. I don't think this is the next X prize. I think this is closer to an open contract for somebody to build the damn thing, when that is a somewhat risky venture that none of the people offering the prize feel they have the ability to execute.