What is seen is a product of the individual observer's visual sensory system. Having a visual system helps navigation through external materially existent reality, assisting avoidance of predators and location of resources. I expect that for most people relating to the seen image as if it is the external reality is not difficult. Problems with the visual system make it more obvious that the images seen are not independently existing.
Can Time Be Saved From Physics?
'existent existing now:' Cambridge English dictionary
Physics studies our experience of the universe. But the universe is not made of experience. It is made of stuff or substance. The universe is a logical system which means it was created from logic and operates according to logic.
This logical system allows only one type of substance and only one type of cause in order to operate logically. This means that at the most fundamental level, these operations are essentially logical; the very reason mathematics are so efficient.
Now take an unknown and a known. Unknown = time. Known = clock. The clock reacts or 'operates' with Time. For a logical operation to occur between the two, they both must be of the same nature. Conclusion: 1) the clock is made of time, albeit a complex form of it. 2) Time is the unique stuff or substance in its most simple state.
Since it makes everything, it would be impossible to detect directly or 'empirically'. Can infer its existence only from secondary inferences.
You have Dark Matter. We swim in it and are made of it. Only our minds can grasp that...
Finally, we do not perceive (human) Time directly as an experience because it is a substance. The sense of Time is a deduction we make from the experience of change. If any of our sensory organ could detect time, that organ would be saturated because time is everywhere...
Marcel-Marie,
"Finally, we do not perceive (human) Time directly as an experience because it is a substance. The sense of Time is a deduction we make from the experience of change. If any of our sensory organ could detect time, that organ would be saturated because time is everywhere... "
That pretty well summarizes my view from a conference paper and PowerPoint of 2007:
https://www.researchgate.net/publication/275521377_Time_Change_Self_Organization
Dear all,
My essay "Cusanus - Still Relevant in Physics?" is still unfinished. I nonetheless attach a link to it, and apologize if I will be unable to participate in discussions at least for a few weaks to come.
Just a brief continuationAttachment #1: Cusanus_vs_SR.docx
John R. Cox,
re:quantum gravity
The concept of spacetime is a bridge between the universe and our reality. Space in our reality is time in the universe out there. The concept is necessary for us in order to be able to keep doing physics. The universe does not have this requirement and therefore it has no use for 'space'. I other words, 'space' plays no part in the working of the universe.
Gravity is time evolving at a diferent rate from place to place. Now, let's go quantum.
1) Time and probabilities:
The cloud of probability of a single free particle in a gravitational field does spans over different rates of time. The cloud is therefore skewed vertically because the particle does spend relatively more time at the bottom than at the top of the cloud. Easy for the mind to grasp. Probability is time dependent and time is running at a different rate in gravity which brings different probability of existence a.k.a. motion. The universality of the effect of gravity commes from its effect on anything that 'exists', irrespective of size, mass etc.
O.K, where do I get 'existence' from?
2) From "finding' to 'being' or 'existence':
The probability of finding a particle in A, as successfully described by shroedinger equation, is equal to the probability of existence of that particle in A. Once the equation is proven exact, we may replace the 'finding' by the 'being' or existence of the particle. The particle MUST BE there with the same (relative) probability as that of being found!!
This conversion from a physical to a metaphysical perspective is necessary in order to understand the universe without us being in the way. Very useful if we are careful.
In conclusion, quantum gravity is simple if we assume this metaphysical perspective, and Shroedinger's equation actually tells us what determines the probability of existence of a particle in a place. Look it up, knowing that the rate of time is 1 on T.
The universe is NOT a big thing. The universe is just a BIG picture we create with our perception and conscious minds. WE are the camera that makes the picture. We integrate the light signals like a camera does.
(The Sun 8 minutes away can be seen at the same time as the Moon half a second away. The simultaneity of perception of their light signals does not mean that they exist at the same time i.e. simultaneity of existence. Only integration over time gives this impression).
So, yes! Our universe is a big picture essentially coming from the VISIBLE information.
Other than that, IMO, there is nothing else with eternal surfaces, or eternity, or infinite surfaces, infinite dimensions, or other combinations of same etc.
A video shows George Smoot who got a Nobel prize in 2006. In "Mapping the University and its History" he presented not just a lot of simulations without fully revealing the assumptions behind them but also an interesting to me measured picture of the stars with very high resolution and said just three of the many visible light spots are stars, the many other ones are galaxies because the look like spirals or at least elliptic.
I hope that John Merryman can better explain to me the CMBR event horizon and how it explains the age of the observable universe. I am still a bit familiar with microwave measurement.
Eckard
A clock is as material device that generates events with regular intervals between. It counts or provides the means for the number of generated events to be counted. It thereby enables quantification of endurance of features of material reality, existence, or changes to material reality by comparison of the subject of inquiry and the number of generated clock events. E.g. How many clock events does it take for all of the cookies to be removed from this jar when given to the class. The measured enduring features and changes are of the spatial arrangement of uni-temporal material reality. The clock is also a material thing in uni-temporal space, with changing spatial arrangement of parts enabling 'time keeping' i,e, calibrated event generation,(counted or countable), for comparison.
Very good! A clock makes very regular events and events are things that happen to matter. In other words, time emerges from things that happen and time is not then a separate substance...
Thanks. I didn't make clear that not only is the clock generated event, such as a mechanical tick, a particular change of spatial arrangement of parts, but the intervals between correspond to a particular regular change of the spatial arrangement of the apparatus; Such as the swing of a pendulum or particular motion of a spring driven wheel. 'Interval' sounds temporal but can be appreciated as corresponding to changing spatial configurations of matter, when clocks are being considered.
Re,"A clock is as material device that generates events with regular intervals between. It counts or provides the means for the number of generated events to be counted."GW This simple explanation is further complicated by the fact that it is not usually the clock generated events, e.g. 'ticks', that are counted by an observer (but could be). Instead the clock apparatus is calibrated so that a certain amount of such events corresponds to movement of pointers on a standard 'time' scale or change of digital output showing change corresponding to the 'time' scale. This calibration of the apparatus allows comparison of measurements made with different 'time' pieces, I.e. standardization. The standardization by calibration to a common scale does not fundamentally alter how the clock functions.
So time emerges from the outcomes of a clock and time does not exist without outcomes...
Hello dear thinkers,
Thanks for sharing your relevant extrapolations about this time.A pleasure to read.
This time is intriguing. I asked me if we could correlate it with the rotating quantum and cosmological sphères.
Friendly
Steve A., What is happening when timing is one series of regular calibrated events is being compared with another sequence of events, either the persistence of something or a sequence of change. The clock and 'timed' i.e. compared, sequences do not exist in isolation but as parts of the changing entirety of existence. Just considering foundational time: each unique entire configuration of simultaneously existing material reality can be considered as a time. The configuration, pattern, arrangement is a spatial distribution of existent things though. Foundational passage of time can be considered the changing configuration, only the youngest version, Uni-temporal Now, existing. That is the only existent 'time', not made of time but a material configuration given a temporal designation.
[deleted]
In Quantum Mechanics, time emerges from measurement rather than time 'being' in the first place. This is due entirely to the methodology which is dependent on the Schrodinger Wave Equation which itself lacks a time parameter. The time span is in practice assigned by the experimenter and is based on the convention of duration as predicated on Earth's rotational observation. Theoretically, time is therefore treated as an emergent phenomenon, however discretionary.
It may be useful to employ the word "timing' for comparison of an event or persisting phenomenon with the calibrated sequence of events generated by a timing device. Expressed as a timing span over which the comparison is made; rather than a time span.
Analogy for measuring a time span: measuring the length of a fuse from the burning end as it burns. Then giving the length of the entire fuse from start to end of burn. (The fuse has burned away and does not have that length.) When the final clock'time' comparison is made preceding 'times' have ceased to be.
Anonymous, do you think the scale used for time on Earth is problematic? Intelligent 'time-telling' life from other star systems would likely use a scale appropriate to their experience. If communication about foundational time was happening between the Earth's human's and extraterrestrials elsewhere then a common scale based on a regular cycle experienced in both habitats would be useful. Overcoming the need for conversion from one scale to another each time. Maybe a cycle based on the chemistry of an abundant element, would suffice.