Paper Review: The Paradoxes of Time Travel

We've all heard of the classic grandfather paradox of time travel: you go back in time and kill your grandfather before he sired your father. But then what happens? We can reason about it in something like the following way. You kill your grandfather, so your father never existed, so you never existed. But then… Continue reading Paper Review: The Paradoxes of Time Travel

Paper Review: Bell’s Theorem: The Price of Locality

Quantum phenomena--and the theories built to account for them--can be strange. One of the most fundamental and (to some), spooky, things about quantum mechanics is action at a distance. What exactly is action at a distance in quantum mechanics, and what are its implications? This is one of the central questions of Tim Maudlin's book… Continue reading Paper Review: Bell’s Theorem: The Price of Locality

Paper Review: Free Variables and Local Causality

When can we treat certain experimental parameters as free variables? Consider trying to figure out whether or not a certain drug is efficacious. We design an experiment that proceeds as follow: Break a collection of experimental subjects up into two groups randomly.To one of the groups give the drug, and to the other give a… Continue reading Paper Review: Free Variables and Local Causality