[reformedliberal]

These would be vulnerable to satellite killers, space debris and could probably be turned into weapons.

I am not sure that I think it is a viable idea. Burning coal, oil and natural gas is just so much simpler than all these other ideas.

[FRForever]

I am not sure that I think it is a viable idea. Burning coal, oil and natural gas is just so much simpler than all these other ideas.

[snort] Right. And plowing behind a mule is a whole lot simpler than building internal combustion engines, and lobbing rocks at your neighbor is easier than building planes and bombs. We should have never learned how to smelt metal...

And anyway, there *will* be advances -- if we don't work on it ourselves, Joe Chinaman will figure out how to do it and leave us in the dust.