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you know that you are following the straightest possible path through spacetime if you know that you are following the straightest possible path through spacetime if you are standing still. you are moving directly from one place to another. you are weightless.

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Your worldline is travelling through spacetime in the straightest feasible direction if you are free to move around.

  • If you experience weight, you are not travelling in the most direct manner.
  • You can move around if your worldline is moving across spacetime in the most straight-line possible path. Weight means that you are not moving as directly as possible.
  • The four dimensions of spacetime consist of one temporal dimension and three spatial dimensions, collectively known as space.
  • We refer to our speed, which includes four components and a direction, as velocity. The four-velocity is represented by the vector U = (c,v x,v y,v z), where is the Lorentz factor.
  • The worldline of the Earth is not round and is helical in spacetime (a curve in four dimensions).
  • If a person could only move through space during spacetime, then space would be where they would move the fastest. Time won't exist for him, and distance will seem like a singularity to him.
  • Since it would need an infinite amount of energy to accelerate a mass to this speed, only massless particles are capable of travelling through space at this speed.

To know more about spacetime check the below link:

https://brainly.com/question/13045731

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