(urth) The green man is a fake
Pedro Pereira
domus_artemis at hotmail.com
Sun Jan 16 16:46:27 PST 2011
> Date: Sun, 16 Jan 2011 16:31:14 -0800
> From: jerry_friedman at yahoo.com
> To: urth at lists.urth.net
> Subject: Re: (urth) The green man is a fake
>
> > - Who says more intense radiation can't lead to different photosynthetic
> >strategies (heck, even our plants have 3 types)
>
> It would have to be many times more intense. Mirrors in space? Another white
> hole or two?
>
> > - Who says photosynthesis is the only path to autotrophy
>
> What else is there? He doesn't seem adapted to use wind power. Getting one's
> internal
> algae to parasitize plants through what looks (and probably feels) like human
> skin would
> be a really, really good trick.
Truth be told, there are other things: chemosynthesis, which many bacteria and archaea use. However it doesn't solve the problem in any way, so you're right anyway.
> > - Who says the green man isn't engineered to be more efficient in his storage
> >of energy
> > - Who says the green man isn't engineered to be more efficient in his usage of
> >energy
>
> There's not enough at 100% efficiency, as Jeff said.
>
> However, I'm imagining a world with many fusion plants powering LEDs that shine
> on
> green people as they sleep. Including shining on them from below through
> transparent
> water or air mattresses.
>
> However however, I suspect Wolfe just committed the Sin Against Niven and didn't
> think it through.
>
> > (Interestingly, one corollary of your idea is that a moving, talking plant is
> >an evolutionary impossibility.)
>
> If by "plant" you mean "something that gets most of its energy from
> photosynthesis on Earth
> as it is now", it would have to move a lot less than us.
I agree fully.
Pedro
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