The point is that protons aren't even fundamental particles.  Unlike electric charge, mass, which is gravitational charge doen't have any corresponding fundamental particle.  The only candidate for a fundamental mass is the the Planck mass.  But if you compare the gravitational attraction of two charged Planck masses to their electromagnetic attraction you find that the gravitational attraction is 137 times greater.

Brent

On 12/28/2022 8:23 PM, Jason Resch wrote:
Or because electromagnetic charge is so great.

On Wed, Dec 28, 2022 at 10:19 PM Brent Meeker <[email protected]> wrote:

    Or because protons are so light.

    Brent

    On 12/27/2022 2:59 AM, Jason Resch wrote:
    > There's an interesting relationship between the strength of the
    > electrostatic repulsion between two protons, and the gravitational
    > attraction of protons. It works out such that it takes ~10^54
    protons
    > gathered together in one place before the gravitational
    attraction can
    > overwhelm the electrostatic repulsion. In other words, stars as
    as big
    > and long-lived as they are because gravity is so weak.
    >
    > See:
    >
    
https://alwaysasking.com/is-the-universe-fine-tuned/#Gravity_and_the_Lives_and_Deaths_of_Stars
    > For the calculation and references.
    >
    > Jason

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