Thought experiments as a method are widely applied in contemporary analytic philosophy. The method poses challenges to a traditional definition by an intuitive counterexample. Actually, such a counterexample is analogous to a logical paradox. Just as a logical paradox relies on the diagonal structure, such a counterexample relies on the information asymmetry. If the information asymmetry in a counterexample could be identified as inconsistent, then such a counterexample is implausible. The inconsistency derived from information asymmetries can be categorized as two cases: overt and concealed. The former results from the violation of the symmetry principle, while the latter from the violation of the self-respect principle. These two principles correspond respectively to the external coherence and the internal stability of a situation.