Quote:
Originally Posted by Fortis
Just to be clear, are you now saying that the coordinatisation of space time is a human construct, and that physics knows nothing of coordinate systems? If so, then I think that we would all agree. Try reading MTW, which uses this view to motivate its use of tensors, etc.
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is it kind of like how we use inches, feet, and miles in the US and almost everyone else uses the metric system?
both systems get the same result, just using different mathematical formulas.
without humans here to invent those measuring systems, the earth still would exist and even be the same size.