Sunday, May 20, 2012

Have Mercy on my Implication


There is some sayings that irritates me. Like, "this is a quantum leap" (Norwegian: "Dette er et kvantesprang"). A quantum leap is the smallest possible leap in nature, in everyday life a quantum leap is the same as a continuous increase, as it is extremely small. That can be remedied, however, by thinking of the quantum leap as a leap in understanding. Physics at the scale of atoms were poorly understood until the concept of a quantum (the world is not continuous, but fundamentally quantized).

And then there are some that have no valid interpretation, some phrases that want me to knock someone's teeth out: "Yes, that implies truth."

It is common to confuse the following three words:
Correlation: Often when there is sun and rain we see a rainbow.
Causation: If you hit me on the head, I will feel pain.
Implication: If the moon is made of cheese, then I am eating chocolate right now.
(Since the moon is not made of cheese, the implication is true whether I am eating chocolate or not. Note also that moon and chocolate have nothing to do with each other.)
See Wikipedia's three pages for a more thorough explanation. Some may argue that implication is an abstract model for causation, but let us avoid philosophy right now.

Back to business: Instead of saying "X is true" some people say "X implies truth" to sound more wise. (In Norwegian: "X medfører riktighet"). This is completely bollocks! If you know that X implies truth, then you know nothing at all about X. ANYTHING implies truth! (Can you feel my frustration?) On the other hand, if someone were to say "Truth implies X", then you would know that X was true.


3 comments:

  1. Is there any difference between correlation and causation, philosophically?

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    Replies
    1. As long as you don't do a Thales: "everything's water", but approach philosphy from the ordinary everyday-life point of view, I'd say yes.

      Example (that you know) from our language
      1 Liz opened the door vs.
      2 Liz caused the door to open (by opening a window and causing a draft)
      3 Liz was there when the window opened

      1) Willful causation
      2) Causation
      3) Correlation, she might have something to do with it, she might not, or she might be an advocate against the opening of the door

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  2. We all know that there is a popular distinction, but there is also a popular concept of free will which I spend too much of my time arguing against. I understand not wanting to go far down philosophical dead-ends, but the quick version goes more or less:

    The distinction (1)vs(2) stems directly from a first person point of view, or alternatively someone else reporting -their- first peron point of view. I don't think there is very much to discuss here.

    I particularly wanted to investigate the distinction (2)vs(3), and whether there actually is a line to draw here. Doing a straightforward, Bayesian scientific method-approach, it feels like (i.e. I haven't given this much careful thought yet) ever introducing the concept of causation is both unjustified and unecessary.

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