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New Theories / Re: Does this train car demonstrate a preferred frame?
« on: 09/02/2024 12:27:15 »
SR does not posit a past/present/future ontology for events. Doing so would contradict the first premise of SR. So any mention of these is meaningless.
The event of reception at the platform observer(s) do very much exist in your picture. You label at least one of them and everything.
The past/present/future is clearly defined by the space-time interval.