a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
comment
alpha0  ·  4596 days ago  ·  link  ·    ·  parent  ·  post: Kolmogorov Complexity, Causality And Spin
Alright, so Dara says:

    [that law] has a very low kolmogorov complexity i.e. 
    few ALU operations of add and shift and multiply 
    (taylor series).
    
    So LOW kolmo complexity = 1/r^2 or any other 
    simple law
I found that interesting, and it 'fits' into his framework, but it is not clear to me why that specific relationship predominates. Intuitively, I would seek a group theoretic explanation. Back to numbers and our favorite formula. Regardless, that made me do a quick search and fished this out:

    I would like to interrupt here to make a remark. The fact that
    electrodynamics can be written in so many ways - the differential
    equations of Maxwell, various minimum principles with fields, minimum
    principles without fields, all different kinds of ways, was something
    I knew, but I have never understood. It always seems odd to me that
    the fundamental laws of physics, when discovered, can appear in so
    many different forms that are not apparently identical at first, but,
    with a little mathematical fiddling you can show the relationship. An
    example of that is the Schrödinger equation and the Heisenberg
    formulation of quantum mechanics. I don't know why this is - it
    remains a mystery, but it was something I learned from experience.
    There is always another way to say the same thing that doesn't look at
    all like the way you said it before. I don't know what the reason for
    this is. I think it is somehow a representation of the simplicity of
    nature. A thing like the inverse square law is just right to be
    represented by the solution of Poisson's equation, which, therefore,
    is a very different way to say the same thing that doesn't look at all
    like the way you said it before. I don't know what it means, that
    nature chooses these curious forms, but maybe that is a way of
    defining simplicity. Perhaps a thing is simple if you can describe it
    fully in several different ways without immediately knowing that you
    are describing the same thing. 
source