Do we know why there is a speed limit in our universe?

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“Why is there a speed limit?” can mean two slightly different things: Why is there any maximum speed at all—why isn’t information allowed to propagate arbitrarily fast? Why is the limit the particular value we call c—about 3 x 108 … Read More

Causal Loops in Time Travel

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About the possibility of time traveling based on several specialized works, including those of Nicholas J. J. Smith (“Time Travel“), William Grey (”Troubles with Time Travel”), Ulrich Meyer (”Explaining causal loops”), Simon Keller and Michael Nelson (”Presentists should believe in … Read More

Causality and causal realism

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In philosophy, science, and everyday language, causality refers to the relationship of cause and effect. cause, the correlate of the effect, is “what makes a thing do or act as it does”; this produces the effect; causality is the “current … Read More

Causality

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In philosophy, causality refers to the relationship of cause and effect. the cause, the correlate of the effect, is “what makes a thing do or act as it does”. This produces the effect; the causality is the “current relationship of … Read More