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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑 2 }1 R- X" J6 K2 A2 k* `3 c- M# q
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open your mouth and wash it with detergent% i3 P, L/ R$ {: o- [
$ s$ s6 m; A1 V0 a9 U8 [- ysure 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:
* l9 p p4 v9 N6 [5 e: s" L"there is no evidence that A holds"
# i8 L/ ^+ y1 K- ?: Vdoes NOT mean
7 ?/ b) m, u1 ~) P"there is evident that A does not hold". ! s n, M {( f& g6 ?
In fact, A could hold.
/ H% N! J* C4 LIt's a matter like observability vs objective existence.. U3 A0 a; |' w) g
So what you say doesn't constitute a refutation.7 }8 P4 p% X1 J1 m# i( L
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It's mainly by argumentation. See for example:
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* @5 H5 u4 D& Q" _7 o5 \1 a"Does the death penalty cost less than life in prison without parole?"% ~) F, h! F6 _+ I; F& w
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http://deathpenalty.procon.org/view.answers.php?questionID=001000' [' C) [4 k7 {/ ^
6 L' o+ l* X* \- x# P) y& @Remember, things are more complicated than what you think.
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