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    Carmelics

    A reasoning platform. Break down any belief into clear reasons, explore both sides, and weigh the evidence honestly.

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    Home/Original/inverse
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    Inverse View

    It is not the case that We perceive motion directly rather than inferring it from memory of past positions.

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    Reasons For

    2 perspectives
    Reason for 1 of 2
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    • 1.Husserl's phenomenology of time-consciousness shows that perception of motion requires 'retention'—a just-past phase held in living present awareness.
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    • 2.If motion perception necessarily involves retentional consciousness of immediately prior positions, then motion perception is structurally memory-dependent, not purely direct.
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    • 3.The qualitative difference between second-hand and hour-hand cases reflects a threshold of retentional decay, not the absence of memory-like processes.
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    Reason for 2 of 2
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    • 1.Psychophysical evidence from Ternus and Wertheimer demonstrates that apparent motion arises from neural interpolation between discrete positional snapshots.
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    • 2.If the visual system constructs motion percepts from discrete positional data, then 'direct perception of motion' describes phenomenology but mischaracterizes the underlying representational process.
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    • 3.Gibson's ecological direct realism, even on its strongest reading, cannot override the inferential computational architecture demonstrated in motion aftereffects and phi phenomena.
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    Reasons Against

    1 perspective
    Reason against
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    • 1.Seeing a second-hand move is qualitatively different from 'seeing' that an hour-hand has moved.
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    • 2.When watching a second-hand, we do not see its current position and recall its earlier position; we simply see the motion itself.
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