Worldly and otherworldly topics
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Utisz
- Posts: 680
- Joined: Fri Nov 22, 2019 4:35 am
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by Utisz » Wed Apr 14, 2021 5:15 am
horvack wrote: ↑Mon Apr 12, 2021 2:46 pm
How would you approach getting the state of the universe in the smallest possible compression?
Something like H265 I guess.
It depends on what the representation of the state of the universe would look like I guess, but assuming something like a 3D matrix of values that changes over time, where certain values are more common, where regions tend to have similar values, I guess it would be a similar problem to lossless compression of 3D videos, just at a larger scale.
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JohnClay
- Posts: 316
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- Location: Australia
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by JohnClay » Wed Apr 14, 2021 6:22 am
Number of atoms in our Sun - 10^57.... I bring it up when talking about our possible simulation - I think that it would be approximated rather than having 10^57 atoms explicitly simulated....
I think it's better to start off with trying to save the state of the Sun.... the width of the Sun is about 1,300,000,000 meters. Planck length is 1.6x10^-35 meters... which is about 10^44 Planck lengths wide.... (10^44)^3 = 10^132 Planck spots (in a cubic Sun).
I'm not sure how many bits it would take to store a number between 0 and 10^132... (or 3 dimensions of 10^44)?
But anyway you'd need to multiply that number by 10^57 to work out the memory requirement for storing a snapshot of our Sun....