Clocks (IMAGE)
Caption
The idealized picture of space and time in general relativity assigns an ideal clock to each point in space, which tick evenly without being influenced by the nearby clocks. However, when quantum mechanical and gravitational effects are taken into account, this picture is no longer tenable, as the clocks mutually disturb each other and hands of the clocks become "fuzzy."
Credit
Copyright: Juan Carlos Palomino, Faculty of Physics, University of Vienna
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