QUOTE(Kath @ Dec 4 2009, 11:56 PM)
That's sort of falling into the "more advanced = pure love" mindset, which some people hold to be true, and others do not. I am one who believes that 'killing' can do more good than harm, from time to time. I'd argue that 'mother nature' seems to hold a similar view. Of course killing just for the sake of killing would be reprehensible, I'm kinda assuming there's an actual urgent purpose or reason for it. Actually that whole aspect of the topic reminds me of the anime series Deathnote. Worth a watch if you've not seen it.
I'll give the anime a look see. I'll also note that more advanced = pure love and killing = sometimes necessary are not incompatible viewpoints, at least as I see them! After all, if one has love for all beings, one would surely prefer to kill one to save ten. There are all sorts of interesting ethical dilemmas you can explore, though - like what if that one was a personal friend? Is there a difference between killing someone and letting someone die? Etc, etc.
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As for nudging a penny off a ledge, you don't have to accelerate it. That's kinda the whole point of the ledge. I'm saying that you could do a very "small" thing which would release a great deal of potential energy, or have a cascading effect, resulting in a lethal effect. For example, moving a pencil at someone with enough force to kill might take hundreds of foot pounds of energy. meanwhile applying only 2 ounces of pressure on the right blood vessel would be just as effective. In other words, if you could apply enough telekinetic force to say spill a mug of coffee, you've got enough kinetic force to kill a human being, IF you apply that force efficiently.
It's an interesting idea and I can't see the flaw in it. (I was just nitpicking about the penny - it doesn't matter how tall the structure you drop it from is, a penny will never reach a velocity high enough to kill someone.)