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Varanas and Vihvelin provide responses to David Lewis' 'Can vs Cannot' discussion. Have there been any appropriate counterresponses to these?

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    Could you provide references for the discussion and responses? – Eliran Dec 9 '18 at 19:46
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The most appropriate counterresponse is that physical time-travel is a fiction and the 'Can vs Cannot' hypotheses are exercises in nonsense.

For example, If you allow faster-than-light (FTL), then you break causality

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