Editing Principle of locality (section)

=== No future-input dependence ===
[[File:Models of locality No future continuous action.png|thumb|No future-input dependence]]
Many locality models explicitly or implicitly ignore the possible effect of future events. The spacetime diagram at the right shows the effect of such a restriction when combined with continuous action. Inputs from the future (above the dashed line) are no longer considered part of Alice's or Bob's model. Comparing this diagram with the one for continuous action makes it clear that these are not the same locality model.<ref name="WhartonArgaman" /> Common sense arguments about the future not affecting the present are reasonable criteria but such assumptions alter the mathematical character of the models.