Very important question. I believe information is a percievable or measurable difference in states of a thing at two different time instants or difference in st

Very important question. I believe information is a percievable or measurable difference in states of a thing at two different time instants or difference in states of two things. A state of a thing exists only because it can be distinguished from another state; that is, the state exists only because it can encode information relative to another state. How fast information can travel? Just as fast as one can distinguish one state from another. This assumes that there exists an agent capable of distinguishing between the states. How fast can this be done? It doesn't start at one state and end at another state. It is instantaneous recognition of the difference. The information is created just when the difference in states is recognized. There is no start or end. It is an event. Events do not have speed.