🧩Unraveling the mysteries of causality: the glue that holds time together ⏳➡️⌛! Think time travel doesn't respect your logic? You're right! Dive into a journey of paradoxes 🔄 & physics⚛️. Time waits for no one...or does it? 🕰️ Causality TimeTravel
— forms the bedrock for our physical understanding of the universe. It isn’t just a theory or law of physics. CausalityTherefore, we assume causality to be true every time we construct a new theory or develop a new model. And we always bake it into each of our equations, automatically constructing models where causes lead into effects.
If I smash an egg to pieces, it isn’t broken until after I smash it. If you see a car coming and swerve the steering wheel, you don’t have the reaction of swerving until after you see the car. Let’s say you have a device that can send a signal back in time. And let’s say that you want to keep your device secret, and so you rig it with a self-destruct mechanism if it receives a very special secret command.
That signal races back in time, where it’s received by the same machine. Upon receiving the secret code, it blows itself up. It no longer exists — but if the machine was destroyed in its own past, then how could it ever exist to send the self-destruct signal in the first place?As you can see, paradoxes abound — not just with sending people or things into the past, but also information.
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