SpaceX's Elon Musk Talks Rockets, Moon Base and Colonization

Combs, Mike wrote:> Yes, as you anticipated, I was not at all impressed with these sources. Looks> like the same people who are going on about power lines, cell phones, and> WIFI, and those concerns are groundless as well.I thought so.> Science is controlled, double-blinded experiments. That's what I'm looking> for.You think that none of the over 100 studies were done this way?> You might have a better point about rectennas (although the structure in that> last picture showing Bill Brown looks like it would let rainfall through, and> maybe about a quarter of the sunlight). I would only make 2 points here. 1.> The fact that all rectenna components built to date look a certain way may or> may not mean they can't be built a bit differently, if there's a compelling> economic reason for doing so.Possibly. But the weight of the evidence, as of right now, is what we see. Andwhat we see is, mostly or almost completely opaque.> 2. Even if it is overselling SPS to say that one could farm or ranch under a> rectenna, I would comment that one cannot do either under a fossil fuel or> nuclear power plant.Yes. However, a moot point. That's a strike against SBSP: a large supposedadvantage, that turns out not to be. (At the very least, for the time being.)