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Results tagged with universe
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user 1486
The universe refers to the cosmos; all of space-time and that which exists as part of it. Alternatively, it can refer to the observable universe, which only contains the part we can see. Questions tagged with this should ask about physics at scales the size of the universe or specific properties of the universe
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Can the universe operate on a totally different set of laws?
"How would a universe based on a totally different set of laws look like?"
Totally different.
"What are the mathematical conditions that make a set of laws consistent?" … "And lastly, why does our universe operates on the laws of physics known to us and not on any other set of laws?"
I'll get back to you on this, after we find out why anything at all exists. …
- 13.4k
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Would large scale quantum computing slow the universe. If so, how could we detect that?
"Currently the universe is concerned with calculating the interaction of its particles and radiation. If, via a quantum computer, we gave it a problem..." … It can't arbitrarily draw upon the resources of all the other particles in the universe when things get difficult. …
- 13.4k
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What scientific evidence or reasoning the authors (Lee Smolin et al) of the "Autodidactic Un...
It does therefore deserve to be studied by anyone considering the idea of a universe where the laws of physics learn, whether from a speculative or a skeptical standpoint. …
- 13.4k
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Is there a way to disprove the universe is a simulation?
How to see if you can do it:
Use logic and pure thought to figure out all possible universes.
Identify all the possible universes that contain an entity which has your experiences.
3a. See if ther …
- 13.4k
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Accepted
Arguments in theories for Eternal Return
The Goedel universe has this feature, but isn't a serious cosmological model. … The Boltzmann brain problem is that in an eternally expanding de Sitter universe, even after the expansion has completely attenuated the matter of the universe, the quantum fields will continue to fluctuate …
- 13.4k
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Is it true that we are probably Boltzmann brains?
The way these things work, is that some intellectual comes up with a bizarre new theory of reality and is delighted with their own cleverness; and then some sensitive member of the public takes the wo …
- 13.4k
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Could somehow the fundamental laws and symmetries of physics change or be broken?
Are you suggesting a new meta-law of physics, according to which the laws of physics stop or change when a particular thing happens?
One may speculate about this and similar things (e.g. as Celia Gree …
- 13.4k
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Supposed we proved that we lived in a simulation. What are some of the current clues we woul...
In fact you could argue that the universe is a relativistic quantum continuum, which at macroscopic scales is "simulating" a discrete deterministic system with universal time. …
- 13.4k
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Do we have enough time for understanding space?
Because light takes time to travel across the universe, old light from far away is also showing us an older epoch of the universe. … So apparently we do directly view conditions from many stages in the history of the universe, and not just the current stage. …
- 13.4k
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Why hasn't the false vacuum collapsed yet?
The masses of the Higgs and the top show that the parameters of the standard model are tuned such that the vacuum is on the edge of decay anyway. The reason for this is not at all known, and suggests …
- 13.4k
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Could Dark Matter have negative pressure?
Search for "dark matter with negative pressure" and you will find several proposals of this kind. The most sophisticated appears to be "Fluid Interpretation of Cardassian Expansion" from 2002.
- 13.4k