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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑 % n% k; f* G, @/ _& P
% }* C' w( d1 p, }. \6 [4 Fopen your mouth and wash it with detergent7 X* H+ g& T3 U @6 ^
- Y+ `& M6 w7 k' Jsure there is no rigorous statistical evidence because there is no way to manipulate in the experiment so as to fully justify the causality.9 V+ u/ x( w/ b1 {1 E* O
# m2 }6 m4 b0 N' F4 OAnd remember:
( y* k9 \! o$ F9 m"there is no evidence that A holds"
3 A" h8 }/ _" l- Y' u1 {, b0 i& qdoes NOT mean : L' c8 Z3 x& n: i
"there is evident that A does not hold". 4 k4 G% a* l1 f& f2 Z
In fact, A could hold. ( D' h5 n- F* G& O
It's a matter like observability vs objective existence.
B2 ^& w' @6 N1 h: z" K0 X8 TSo what you say doesn't constitute a refutation.2 u+ y2 b! O+ c# ]) t+ _- u
5 _8 \( t2 Q+ v: U" F4 j- r) VIt's mainly by argumentation. See for example:
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"Does the death penalty cost less than life in prison without parole?"
5 J' Z( \2 p( F* K& Fin
7 a; A( e. F+ ^/ \6 zhttp://deathpenalty.procon.org/view.answers.php?questionID=001000
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1 L( t, G) ]1 v& h& k1 l, J& pRemember, things are more complicated than what you think./ p' ~, q! |, W. w. @
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