Kevin Wampler schrieb:

>>>> Well, AFAIK there's actually no fundamental reason to apply 
>>>> different "measuring tapes" to time and space: 
>>>
> Is you point that in space time there *is* a well-defined notion of 
> distance which unifies both the spatial and temporal aspects, and thus 
> we don't really need to use one set of units for space and another set 
> for time?  Your comment about light-seconds would make more sense in 
> this context.  If this is the case perhaps I've been misunderstanding 
> your point form the beginning, since I'd surely agree with this.

Well, yes, I guess that's one way to express what I said: We don't need 
different "measuring tapes" for time and space. How distance is measured 
"diagonally" in spacetime is another story.

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