I've finally accept that the universe is unimaginable

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Discussion Overview

The discussion revolves around the challenges of comprehending the vastness and complexity of the universe, including concepts such as the size of the universe, the nature of energy, and the limits of human understanding. Participants explore philosophical and scientific implications, as well as personal reflections on the nature of knowledge in physics.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested
  • Meta-discussion

Main Points Raised

  • One participant expresses frustration at the inability to imagine the universe's size and complexity, comparing it to a mouse trying to understand a jet engine.
  • Another participant acknowledges the limits of human imagination but highlights the progress made in understanding concepts like the mass of the sun and the size of the observable universe.
  • Concerns are raised about the concept of infinite energy density at the beginning of the universe, with a suggestion that quantum gravity theories may provide alternative predictions.
  • A participant mentions the potential for increased human understanding through the unification of general relativity and quantum mechanics.
  • One post emphasizes the enjoyment of the learning process in physics, suggesting that the journey of discovery is valuable despite uncertainties.
  • Another participant references the Flynn Effect, indicating a belief that human IQ is on the rise, which may lead to better comprehension of complex topics in the future.

Areas of Agreement / Disagreement

Participants generally agree on the difficulty of grasping the universe's vastness and complexity, but multiple competing views remain regarding the implications of this difficulty and the potential for future understanding.

Contextual Notes

There are unresolved assumptions regarding the nature of energy and the implications of theories of quantum gravity. The discussion reflects a mix of personal reflections and scientific considerations without reaching definitive conclusions.

Who May Find This Useful

This discussion may be of interest to those exploring philosophical questions about the universe, the limits of human understanding in physics, and the interplay between scientific progress and conceptual challenges.

MathJakob
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Everyday I sit and think about the universe, and after some thinking I always end up letting my imagination run wild with what could be out there, what space is and is there a creator ect.

Then it's like getting smashed in the face with a wake up call... I can't possibly imagine anything in the universe.

The size of the universe is literally unimaginable, our brains can not comprehend the distances.
The size of objects is unimaginable, even our own sun is extremely hard to visualise and that's absolutely tiny on the grand scale of things.
The speed of light is impossible to imagine, traveling around the Earth 7 times per second.
The enormous energy produced by universal explosions such as supernovae, which is equivalent to about 10 octillion megatons of TNT.

And finally the most brain crushing question of them all, this is where I'm hoping I can get some help. Does anyone find it absolutely impossible to grasp the concept of something (energy) having always existed, the "stuff" that created that tiny piece of infinitely dense matter that turnt into the big bang.

Sometimes I think it's like a mouse trying to figure out the workings of a jet engine. It's just impossible! Although a caveman trying to figure out the workings of a jet engine would have been impossible too so hopefully if humans live long enough and our understanding becomes greater it may not be too difficult to not only visualise this stuff but actually grasp it.

There should be a word specifically created for describing how ridiculously massive the universe is. Maybe that word is universe... come to think of it xD
 
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You are correct these things are way beyond our experience and we can't really imagine them. But , we shoudlnt neglect the amazing progress that has been made, that we know how mass of the sun compared to the Earth, the size of the observable universe etc. is pretty amazing.
We don't the eneggy density of the universe at t=0 was infinite. That prediciton from applying general relativity to a regime where quanutm mechnical effects should dominate. Proposed theories of quanutm gravity do not predict infinite desnity.
 
I saw an article that claims human IQ is increasing...so maybe there is more hope than you think! If we can unite GR and QM via a theory of quantum gravity some the issues of concern will begin to be understood.
 
"Happiness is found along the way, not at the end of the road":smile:

Physics is fun at any stage of comprehension, just enjoy the process. The angst of not knowing some of the answers is all part of it, it works to keep you motivated. Take a lesson from our old friend Feynman:

https://www.youtube.com/watch?v=E1RqTP5Unr4
 
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MathJakob said:
Everyday I sit and think about the universe, and after some thinking I always end up letting my imagination run wild with what could be out there, what space is and is there a creator ect.

Then it's like getting smashed in the face with a wake up call... I can't possibly imagine anything in the universe.

The size of the universe is literally unimaginable, our brains can not comprehend the distances.
The size of objects is unimaginable, even our own sun is extremely hard to visualise and that's absolutely tiny on the grand scale of things.
The speed of light is impossible to imagine, traveling around the Earth 7 times per second.
The enormous energy produced by universal explosions such as supernovae, which is equivalent to about 10 octillion megatons of TNT.

And finally the most brain crushing question of them all, this is where I'm hoping I can get some help. Does anyone find it absolutely impossible to grasp the concept of something (energy) having always existed, the "stuff" that created that tiny piece of infinitely dense matter that turnt into the big bang.

Sometimes I think it's like a mouse trying to figure out the workings of a jet engine. It's just impossible! Although a caveman trying to figure out the workings of a jet engine would have been impossible too so hopefully if humans live long enough and our understanding becomes greater it may not be too difficult to not only visualise this stuff but actually grasp it.

There should be a word specifically created for describing how ridiculously massive the universe is. Maybe that word is universe... come to think of it xD

Shut up and calculate:redface:
 
DiracPool said:
Shut up and calculate:redface:



Bell John - Speakable And Unspeakable In Quantum Mechanics

http://www.futuretg.com/FTHumanEvolutionCourse/FTFreeLearningKits/03-PH-Physics,%20Chemistry%20and%20Free%20Energy/040-PH04-UN02-03-Quantum%20Mechanics/J.%20S.%20Bell%20-%20Speakable%20And%20Unspeakable%20In%20Quantum%20Mechanics.pdf
 
Last edited by a moderator:
Naty1 said:
I saw an article that claims human IQ is increasing..

The Flynn Effect.
 

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