+Path dependence describes how present decisions are constrained by past choices, even if those past choices are no longer optimal. Early events can set a [trajectory](/wiki/Trajectory) that is difficult to alter, creating [lock-in](/wiki/Lock-in).
+## See also
+- [Feedback Loop](/wiki/Feedback_Loop)
+- [Emergence](/wiki/Emergence)
+- [Complexity](/wiki/Complexity)
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