(Phys.org)—Although there are many counterintuitive ideas in quantum theory, the idea that influences can travel backwards in time (from the future to the past) is generally not one of them. However, ...

Retrocausality is primarily a thought experiment in philosophy of science based on elements of physics, addressing the question: Can the future affect the present, and can the present affect the past?

If his experiment with splitting photons actually works, says University of Washington physicist John Cramer, the next step will be to test for quantum "retrocausality." That's science talk for saying ...

In 2022, the physics Nobel prize was awarded for experimental work showing that the quantum world must break some of our fundamental intuitions about how the universe works. Many look at those ...

The article on retrocausality seems to be implying that John Cramer and others are on the verge of sending messages back in time (30 September, p 36). They are not. Retrocausality is a conceptual ...

Ever wish you could reach back in time and change the past? Maybe you'd like to take back an unfortunate voice mail message, or rephrase what you just said to your boss. Or perhaps you've even dreamed ...

We've all heard of the "consequences of our actions," where something in our past somehow brings about something in our future. Another common way to look at it is through the eyes of sowing seeds.

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Add Yahoo as a preferred source to see more of our stories on Google. In 2022, the physics Nobel prize was awarded for experimental work showing that the quantum world must break some of our ...