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## Main Question or Discussion Point

Does anyone know if the sign convenmtion from the metric tensor is linked to the sign convention in the Dirac equation. i.e is it possible to have a dt^2 - dX^2-dY^2-dZ^2 metric,

with a (-,+,+,+) convention for the Dirac equation?

with a (-,+,+,+) convention for the Dirac equation?