So I have an issue understanding how to compute a matrix using the Minkowski metric as a null (read light-like) spacetime vector.(adsbygoogle = window.adsbygoogle || []).push({});

As best I can understand it, it is a vector which has all velocity in the spacial components and none in time.

Also, would a vector that transcends the speed of light mean that you are traveling through negative time? I don't really get how I should interpret a vector that is inside the light cone.

So I have

[-1 0 0 0]

[0 1 0 0 ]

[0 0 1 0 ]

[0 0 0 1 ]

for my matrix denoting the Minkowski metric (probably using wrong terminology)

what would a vector that determines a null vector be?

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# Need an explanation for Null Vectors

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