Zeev...i believe i read a post by you on SNDK. The stock has fallen from 70 to 50 in a month time. I am perplexed why you think it is going to 37. Is something wrong with SNDK business model. I hear good things about their products.
The old spaceship syndrome. To date and in the near future batteries simply weigh too much. Much of the energy is spent just lugging them around. Increasing range approaches the point of diminishing returns pretty fast. Storing energy as hydrogen may prove most efficient for vehicle, etc. I believe even a flywheel is a more efficient storage system than modern batteries.
As for the oxygen depletion effect of the "Jupiter project", we could simply back haul nitrogen to Jupiter to maintain balance. Of course eventually we would notice and excess of water. I think Kevin Kostner made a movie about that. <G>
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