On Wed, 27 Jul 2005 21:57:59 -0400, "jonathan"
wrote, in part:

Let me ask you, looking into the future what is our biggest problem
facing us? Isn't it our global energy needs? In fifty years or so
we need to replace oil with other sources. Solar energy, collected
in space, is the ...only... practical path. Fusion is a pipe-dream.

If fusion power is a problem, thorium breeders will serve nicely.

Solar power satellites are dangerous and expensive - only an L5 habitat
could make them economically.

John Savard
http://www.quadibloc.com/index.html
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