Causality
The possibility of superluminal photons has caused concern because it might allow for the violation of causality by sending information faster than c. However, several authors (including Scharnhorst) argue that the Scharnhorst effect cannot be used to create causal paradoxes.
Read more about this topic: Scharnhorst Effect
Famous quotes containing the word causality:
“Time, space, and causality are only metaphors of knowledge, with which we explain things to ourselves.”
—Friedrich Nietzsche (1844–1900)
“Any important disease whose causality is murky, and for which treatment is ineffectual, tends to be awash in significance.”
—Susan Sontag (b. 1933)
“It is known that Whistler when asked how long it took him to paint one of his “nocturnes” answered: “All of my life.” With the same rigor he could have said that all of the centuries that preceded the moment when he painted were necessary. From that correct application of the law of causality it follows that the slightest event presupposes the inconceivable universe and, conversely, that the universe needs even the slightest of events.”
—Jorge Luis Borges (1899–1986)