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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑 . o) S" P4 U1 _5 @& s
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open your mouth and wash it with detergent
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2 X1 v* r% ^' ?8 F' fsure there is no rigorous statistical evidence because there is no way to manipulate in the experiment so as to fully justify the causality.
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And remember:
; {& ?4 s. S: A; c7 \5 O$ ^" B: S3 @"there is no evidence that A holds"
5 L1 s- u4 _. a* l0 J jdoes NOT mean 7 v5 M: L$ ]3 @; ?6 v* s
"there is evident that A does not hold". 2 ^- s0 w" v* Z
In fact, A could hold. ( }$ r: Y2 q" ]- Y0 q# o: M3 I5 W, [
It's a matter like observability vs objective existence.1 w) z; `. f$ u, ]2 w9 O
So what you say doesn't constitute a refutation.3 M! N/ F& R0 ], E
% n" P0 Y- x3 p6 ~; t4 DIt's mainly by argumentation. See for example:
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( J4 g2 N M" T1 E6 h6 Z"Does the death penalty cost less than life in prison without parole?", b+ k% i# W( s$ h; m& v
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http://deathpenalty.procon.org/view.answers.php?questionID=001000
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! I- g1 Q- V+ R8 ]5 }7 }9 eRemember, things are more complicated than what you think.
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