Time-symmetric formulation of quantum theory provides new understanding of causality, free choice, and why we remember the past but not the future

Sounds interesting, but read for yourself.

After Big Bang

Theoretical physicists at the Université libre de Bruxelles have developed a fully-symmetric formulation of quantum theory which establishes an exact link between asymmetry and the fact that we can remember the past but not the future.

The laws of classical mechanics are independent of the direction of time, but whether the same is true in quantum mechanics has been a subject of debate. While it is agreed that the laws that govern isolated quantum systems are time-symmetric, measurement changes the state of a system according to rules that only appear to hold forward in time, and there is difference in opinion about the interpretation of this effect.

320px-Wooden_hourglass_3 from WIKI

Now theoretical physicists at the Université libre de Bruxelles have developed a fully time-symmetric formulation of quantum theory which establishes an exact link between this asymmetry and the fact that we can remember the past but not the future — a…

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