Physics and me-paradoxes

- Motion is only relative. But somehow I still know I am moving my arm, finger, mouth.

-If the past or future exists, who is preforming my conscious acts? If I’m not aware of doing them, aren’t they being done unconsciously?

-When I am treated as a complex wave function, I don’t count as an observer. So how do I count as an observer?

 

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4 Comments

  1. September 26, 2012 at 10:47 am

    Just Thomism writes : “Motion is only relative. But somehow I still know I am moving my arm, finger, mouth.”

    I don’t know what the paradox is, but doesn’t the knowing of their motion fall under the self evident?

    • September 26, 2012 at 3:23 pm

      “Relative motion” here means that objects only move relative to one another or to a reference frame, and so that is it meaningless to speak about knowing which object is moving absolutely. But it seems that when I move my hand relative to the wall that I know that it is my hand that is moving, and not the wall.

      Living things appear to have an absolute motion, though it is not clear how to give this a physical meaning. They also have an absolute time: if I went back in time and returned a year later, I would say I spent a year in the past, though this has no clear sense in a temporal reference frame.

      • September 26, 2012 at 7:15 pm

        James Chastek writes : “it meaningless to speak about knowing which object is moving absolutely.”

        I’m rather surprised you wrote the above, it’s perfectly self evident I’m moving my fingers around on the stationary keyboard within the boundaries of the table I’m sitting at.

        It’s not that living things appear to have an absolute motion, they do have an absolute motion.

        God created a world that is knowable of which I know with perfect certitude that I am moving my fingers on the keyboard, just as I have perfect certitude that I moved them yesterday across this same keyboard.

        Most of your posts I read appear to be a reaching up and grasping at the wind for balance when you could much more easily simply stand where you are.

  2. September 26, 2012 at 8:48 pm

    Adding on. The more I think about it, the stranger your term ‘meaningless’ appears.

    When someone tells me he moves his fingers on a keyboard, the words are perfectly meaningful, whereas they would not be meaningful if we did not have certitude of what moves in relation to what.


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