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    LoyalLoyalJusticeJustice
    Made withinDC&Austin
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    42
    Home/Original/inverse
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    Inverse View

    It is not the case that Conventions in Poincaré's sense are freely chosen for convenience and carry no epistemic necessity, yet Einstein's simultaneity convention is constrained by the invariance of light speed.

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    Reasons For

    1 perspective
    Reason for
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    • 1.Light speed invariance itself rests on a conventional choice to adopt it as a fundamental postulate; it doesn't derive from deeper non-conventional premises.
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    • 2.Einstein's simultaneity remains operationally conventional—it depends on choosing clock synchronization procedures, which are definable multiple ways consistently.
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    • 3.Calling something 'constrained by invariance' conflates physical constraints with epistemic necessity; constraints can preserve multiple conventional frameworks simultaneously.
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    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.Light speed invariance is empirically universal across all inertial frames, making simultaneity conventions tied to it physically justified rather than arbitrary.
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    • 2.Poincaré conventions (like metric choices) remain truly conventional because alternatives work equally well; Einstein's simultaneity does not permit such substitutes.
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    • 3.Physical constraints that eliminate viable alternatives transform what would be a convention into a constrained choice, distinguishing Einstein's from Poincaré's case.
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