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On 21-10-2009 19:00, clipka wrote:
> Kevin Wampler schrieb:
>
>> I think that this becomes problematic for measuring between points
>> which aren't connectible by a lightlike geodesic, but maybe there's
>> some clever way around that (although I don't see how).
>
> Well, if two points cannot be reached from one another - is there /any/
> way to assign a distance to these points at all?
Yes there is, but you have to keep in mind that the points here are 4
dimensional points. i.e we are talking about two events that take place
in two places that happen closer in time than the light needs to go from
one place to the other.
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