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Joined 1 year ago
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Cake day: July 24th, 2023

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  • No physical mechanisms predefines future events (or is there one ?).

    So, I could state that the future does not exist yet and the past as ceased to exist.

    in that statement I have a problem with the definition of existence. Does the definition of existence exist itself ? This is (is it ?) more a problem of terminology than philosophy or physics.


  • Thanks for your time and attention.

    We have never observed anything in the universe just popping into existence from nothing (…)

    if we did, that would be a major shift in physics. in this regards I heard of (or read of) two candidates :
    .1 if universe’s expansion continues to accelerate, (it would mean) dark energy is increassing.
    .2 an excess of hydrogen (clouds) outside of galaxies was observed that is difficult to explain with current cosmology.

    I know these are not direct observation of something popping up, …but still.










  • A_A@lemmy.catoAsk Science@lemmy.worldGravity field scaling?
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    1 year ago

    I did make I have made many mistakes, much worse than this one and on many occasions. I would say : don’t be so hard on yourself since it’s important to forgive ourselves.

    I do believe the following correction should be made again to your text though :

    Gravity is an [edit: inverse squared] function, so it gets weaker at an exponential a squared rate as you move away from the source.










  • Yes we had a nice exchange five or six days ago in your post :
    Beyond the Darkness - Dark Matter: A Baseless Hypothesis?
    I am not a physicist and I don’t work in this field. I just read since many years and I made my mind about what was going to be successful and what was not.

    My best prediction so far was that JWST was going to see the same type of galaxies very far away as those in the local universe. (at least partially verified) I made that same prediction when Hubble telescope was put into orbit. Back then physicist started doubting their theories.

    I was most impressed by a single fact of physics ...

    …that all energy in ordinary matter is equal to the negative potential gravitational energy of that matter. Because of this I am scanning all I read for clues for a mechanism where matter could be created from gravitational field …something like Hawking radiation. For the same reason I am also looking for evidence that the universe could stand for a much longer time since the CMB. This would be the case for a universe that would be exponentially expanding. Suppose the accelerating rate of expansion double each 10 billion years or so. Then, if you go in the past every 10 billion years the rate of expansion is smaller and smaller exponentially decreasing and the universe is extremely old.

    I have so many more ideas but I don’t want to make a wall of text.