• Copernican@lemmy.world
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    1 year ago

    Dumb quote. Facts have nothing to do with belief. There’s belief and there is justification. The facticity has little to do with justification and belief. If Ptomely was chatting you up a bar and tried convincing you the earth revolves around the sun he’d be factually correct, but lying to you since it’s not his belief and the observational justification wasn’t there. Copernicus was more correct, but the justification for Ptomely was Copernicus’s model didn’t accurately predict celestial bodies in the heavens due to it’s perfect solar orbital circle model and Promley’s wheels on wheels model around the earth.

    Reasonable people have a fallible confidence. Maybe what they believe is wrong, and are willing listen to justifications for other things. The unforced force of the rational or justifiable argument causes you to change your belief. Fact is just what we called justified belief.

    • dtxer@lemmy.world
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      1 year ago

      It’s not dumb it’s just a different take on reality (bayesian thinking). I have a model and accordingly a belief belonging to it: “given the data, how likely is it, that my current model is true?”.

      So maybe you’re starting of believing an orbit has a spherical shape because it describes best your observations. But as you’re collecting data you’re noticing that an elliptic shape is more probable. Therefore you now believe the shape is elliptical.

      In physics it’s often different. People start of writing down a law from first principles and see if it agrees with the data. E.g. Kepler writing down his three laws of planetary motion in an act of epiphany. Then he sees this fits the data well and is happy.

      The question is philosophical: Do you believe there is some fundamental laws nature obeys or do you say I just take the model which is the most probable given the data.

      But I agree that only very few people are belonging to the latter group and even fewer people in theoretical physics, where people are obsessed with “beauty” - e.g. believing orbits are being described by ellipses, not just some shape my data suggests me.

      • Copernican@lemmy.world
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        1 year ago

        The point I’m trying to make is that there may be facts. But facts are only known to be facts by people because of an accepted argument or justification to believe that. If facts were just out there and received there wouldn’t be a difference. But the facts don’t change beliefs. Beliefs define what statements we accept as “fact,” even if not accurate. Facts don’t change beliefs. Arguments and justifications change our beliefs to accept certain statements as facts.