 鲜花( 5)  鸡蛋( 6)
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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑
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5 N# E2 @+ M# Z( a% e9 {0 F2 J2 oopen your mouth and wash it with detergent$ j& z; b9 u) s; f
- ^' X- b+ x$ X, P5 \sure there is no rigorous statistical evidence because there is no way to manipulate in the experiment so as to fully justify the causality. ]7 k# h) V" V* S
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And remember: ! I0 m7 T5 o2 C1 P9 g2 N( a
"there is no evidence that A holds"
, v5 n H/ ~9 Y$ h, H, [does NOT mean ; {8 X6 t/ k+ ` \! N, t
"there is evident that A does not hold". ( s! C$ J) C5 d- h! O Z c6 L2 H9 v* K
In fact, A could hold.
. t7 ^ G& ^# ]: L4 n# M& B# FIt's a matter like observability vs objective existence.
& N/ O+ l9 Z$ i% E; h8 dSo what you say doesn't constitute a refutation.
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, {: F1 h. l5 U0 W; Z* yIt's mainly by argumentation. See for example:* t u3 c4 b; y1 i/ R$ o, y) h
4 }* R) J2 s* l' _% A"Does the death penalty cost less than life in prison without parole?"
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http://deathpenalty.procon.org/view.answers.php?questionID=001000. p" ^0 O, ]+ |' G+ `9 @
5 I- t3 Z2 J/ M4 j# Q! Q- r8 f9 x/ K5 }; x2 DRemember, things are more complicated than what you think.3 e( U. X; y! g7 P. T0 A; k8 Q
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