Re: Is "Spacetime" a misnomer?

PD wrote:
Barry wrote:

The so called "time" coordinate in spacetime can be replaced by a
spatial coordinate without loss of meaning.

If this were true, wouldn't this demand a Euclidean metric?

No. We can use whatever metric we like.

The idea is not to change the maths per se, but to change the interpretation/meaning, without affecting the fundamentals.

Some posters claim they only want to discuss only the "fundamentals", but they don't yet understand that the "fundamentals" haven't been changed.

I don't think that they want to think about it too deeply.

It's the same fundamentals, with what appears to be just a correction in terminology, but avoiding some pitfalls.

And with fascinating glimpses of a space/time symmetry that spacetime completely misses as far as I can see.

Barry




Barry
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