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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑
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open your mouth and wash it with detergent+ c) [& D# i- ~ O" s
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sure 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: : X: S7 c; p3 m! P! R: F' Z5 p
"there is no evidence that A holds" + ?% W8 q2 P% f
does NOT mean
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In fact, A could hold.
: b- P" u, n- `* X& Y, I3 gIt's a matter like observability vs objective existence.
" T/ }8 X( C2 Z% q ^+ _ YSo what you say doesn't constitute a refutation.
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It's mainly by argumentation. See for example:
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"Does the death penalty cost less than life in prison without parole?"7 f7 x+ r$ H: ]1 Z. r
in
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; o: P/ F+ y$ D: x }0 B. PRemember, things are more complicated than what you think.9 m. T" `1 V/ o
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