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The Skeptic’s Skeptic

In the battle for ideas, scientists could learn from Christopher Hitchens
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SCIENCE VALUES DATA and statistics and champions the virtues of evidence and experimentation. Those of us “viewing the world with a rational eye” (as the new descriptor for this column in Scientific American reads) also have another, underutilized tool at our disposal: rapier logic like that of Christopher Hitchens, a practiced logician trained in rhetoric. Hitchens—who is “leaving the party a bit earlier than I’d like” because of esophageal cancer, as he lamented to Charlie Rose in a recent PBS interview—has something deeply important to offer on how to think about unscientific claims. Although he has no formal training in science, I would pit Hitchens against any of the purveyors of pseudoscientific clap trap because of his unique and enviable skill at peeling back the layers of an argument and cutting to its core. (continue reading…)

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Will E.T. Look Like Us?

Evolution helps us imagine what aliens might be like
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What are the odds that intelligent, technically advanced aliens would look anything like the ones in films, with an emaciated torso and limbs, spindly fingers and a bulbous, bald head with large, almond-shaped eyes? What are the odds that they would even be humanoid? In this YouTube video, produced by Josh Timonen of the Richard Dawkins Foundation for Reason and Science, I argue that the chances are close to zero. Richard Dawkins himself made this interesting observation in a private communication after viewing it:

I would agree with [Shermer] in betting against aliens being bipedal primates, and I think the point is worth making, but I think he greatly overestimates the odds against. [University of Cambridge paleontologist] Simon Conway Morris, whose authority is not to be dismissed, thinks it positively likely that aliens would be, in effect, bipedal primates. [Harvard University biologist] Ed Wilson gave at least some time to the speculation that, if it had not been for the end-Cretaceous catastrophe, dinosaurs might have produced something like the attached [referring to paleontologist Dale A. Russell’s illustrated evolutionary projection of how a bipedal dinosaur might have evolved into a reptilian humanoid].

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