+Propagation delay is the finite time a [signal](/wiki/Signal) needs to travel across a physical medium or through a component. This intrinsic delay impacts [circuit speed](/wiki/Circuit_Speed) and network performance, setting fundamental limits on communication and processing.
+## See also
+- [Latency](/wiki/Latency)
+- [Bandwidth](/wiki/Bandwidth)
+- [Speed of Light](/wiki/Speed_of_Light)
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