Brian Garrett

Resumo Neste texto, o autor concentra-se em dois artigos históricos: o de Max Black “Why cannot an effect precede its cause”? e o de Michael Dummett “Bringing about the Past”. O autor irá mostrar onde falha o “bilking argument” de Black, contra a possibilidade da causalidade invertida. Por conseguinte, o autor irá concordar com Dummett, na possibilidade de um agente actuar a fim de que algo possa ocorrer no passado, contudo, discordando da argumentação de Dummett face a um desafio céptico, que tenta mostrar a inutilidade de afectar o passado. Palavras-chave : Black, causalidade invertida, Dummett, razões, tempoIn this discussion I focus on two classic articles: Max Black’s ‘Why cannot an effect precede its cause?’ and Michael Dummett’s ‘Bringing about the Past’. I argue that Black’s bilking argument against the possibility of backwards causation fails. I agree with Dummett that the idea of an agent acting in order that something should have happened in the past is not absurd, but I disagree with Dummett’s response to a sceptical challenge which attempts to show that it is pointless to attempt to affect the past. Keywords : backwards causation, Black, Dummett, reasons, time

In this discussion paper, I evaluate some arguments of Mark Johnston's which appear in his articles «Fission and the Facts» and «Reasons and Reductionism» . My primary concern is with his description of fission cases, and his assessment of the implications of such cases for value theory. In particular, Johnston advances the following three claims:Rejecting the intrinsicness of identity is an arbitrary response to the paradox of fission;Fission cases involve indeterminate identity;Contra Parfit, fission cases have no implications for value theory in the actual world.I argue that and are false, and that , if true, is not true for any reason that Johnston gives