In the quantum world, the future affects the past:

[GeorgeGist]

In the quantum world, the future affects the past: Hindsight and foresight together more accurately 'predict' a quantum system’s state.

Date:
February 9, 2015
Source:
Washington University in St. Louis
Summary:
In the quantum world, the future predicts the past. Playing a guessing game with a superconducting circuit called a qubit, a physicist has discovered a way to narrow the odds of correctly guessing the state of a two-state system. By combining information about the qubit's evolution after a target time with information about its evolution up to that time, the lab was able to narrow the odds from 50-50 to 90-10.

http://www.sciencedaily.com/releases/2015/02/150209083011.htm

[still_one]

1. Only at the sub-atomic level

[Fumesucker]

2. So far

[DavidDvorkin]

3. I can hear the woo-woo already.

[Fortinbras Armstrong]

4. So can I