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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑 & Z* R' e2 T% E' I1 e9 Y
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open your mouth and wash it with detergent
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# [/ S6 \. Z+ P( l; {6 Msure there is no rigorous statistical evidence because there is no way to manipulate in the experiment so as to fully justify the causality.; L9 d$ ~$ {9 y0 m q- ^
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And remember:
{4 i. Y5 N, D4 P% s7 R"there is no evidence that A holds" # M; S( k1 Y+ R+ N/ c, {6 m: J0 ^
does NOT mean
" r5 n4 j2 [. F+ Y5 N"there is evident that A does not hold". 6 \, U% v% j, R- `/ u h4 L
In fact, A could hold. + Z& D, G& G# e: a% Q
It's a matter like observability vs objective existence.
2 N* W" V8 I- S1 J5 z# `So what you say doesn't constitute a refutation.
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It's mainly by argumentation. See for example:0 ~7 [$ F0 i; w! H
5 P" x; h- D& E5 ^9 E% M* }" k"Does the death penalty cost less than life in prison without parole?"' n( B! V4 I/ ^1 X$ F9 a1 z
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http://deathpenalty.procon.org/view.answers.php?questionID=001000/ S2 o8 f- Y# m- U
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Remember, things are more complicated than what you think.
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