A Letter in New Scientist, 4 December 2010:
This letter is a test of quantum time travel. I, in your past, am sending you, in my future, a message. When you print this, in my future, you will, by post selection, be sending me, in your past, a message telling me what to type when I have finished my cup of coffee. PS: It works.
(Andy Biddulph, Burton on Trent, Staffordshire, UK)
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