Abstract
A famous puzzle called “Grandmother Paradox” is used to argue against the feasibility of traveling backward in time because of the logical and nomological problems such travel involves, and not only because we don’t have the technology to make it reality. The same kind of problems would be encountered in leaping forward in time and then returning to the time of departure. We argue that a similar family of problems also arise in our having foreknowledge of the future without making any time travel. We point to the mysterious consequences of having access to a being, say a machine or a psychic, that can have infallible knowledge of the future and conveys this foreknowledge to human beings truthfully, without any lies or distortions. The cause of these mysterious consequences is the fact that such machines or psychics will raise logical and nomological complications reminiscent of the ones we encounter in time travel scenarios, and that is a strong reason why infallible foretellers cannot exist. We conclude that we can have foreknowledge of the future, in principle, only within certain narrow limits, if at all.
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DOI 10.5007/1808-1711.2019v23n2p345
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References found in this work BETA

The Paradoxes of Time Travel.David K. Lewis - 1976 - American Philosophical Quarterly 13 (2):145-152.
The Paradoxes of Time Travel.David Lewis - 2004 - In Tim Crane & Katalin Farkas (eds.), Metaphysics: A Guide and Anthology. Oxford University Press.
Relativity and the Moving Spotlight.Bradford Skow - 2009 - Journal of Philosophy 106 (12):666-678.

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