Is Our Brain Limiting Our Understanding of the Universe?

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Discussion Overview

The discussion explores the relationship between human cognitive limitations and our understanding of the universe, particularly in the context of dimensions in mathematics and physics. Participants consider whether thinking in more than three dimensions could simplify complex theories like string theory or complicate mathematical concepts such as differential equations.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification
  • Mathematical reasoning

Main Points Raised

  • Some participants propose that the limitations of human cognition, primarily thinking in three spatial dimensions and one temporal dimension, may hinder our ability to fully understand the universe.
  • Others argue that while humans can conceptualize higher dimensions, the universe as we know it operates within the confines of three spatial and one temporal dimension, lacking compelling experimental evidence for more.
  • One participant raises the philosophical question of whether mathematics is invented or discovered, suggesting that the elegance of physics described by mathematics indicates a fundamental connection to the universe.
  • Another viewpoint suggests that if higher-dimensional thinking provided a survival advantage, it would have been adopted by humans and other animals, implying that our current dimensional understanding is sufficient.
  • Some participants express skepticism about the simplification of mathematics and physics through higher-dimensional thinking, with one noting that it could complicate differential equations instead.
  • There is a call for mathematical demonstration of claims regarding higher dimensions, emphasizing that opinions alone are insufficient in the forum context.
  • A humorous exchange occurs regarding the frequent appearance of Pi in various mathematical contexts, with participants joking about its implications.

Areas of Agreement / Disagreement

Participants express a range of views on the implications of higher-dimensional thinking, with no consensus reached on whether it would simplify or complicate mathematical and physical understanding. The discussion remains unresolved regarding the fundamental nature of mathematics in relation to the universe.

Contextual Notes

Participants acknowledge the limitations of human perception and cognition, as well as the dependence on definitions and the unresolved nature of higher-dimensional mathematics in relation to physical theories.

Simon Peach
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Thinking about 'everything' out there and the more and more convoluted way we have to arrange our maths and physics to explain the universe. I am starting to wonder if it's our brain is at fault. The human brain can only think in 3 dimensions maybe 4 with time, but that is one-directional, backwards. Now if we could instinctively think in more the 3 dimensions wouldn't it make thing a lot simpler to explain the universe. E.g. string theory etc etc?
BTW And the answer isn't 42! I'm ready again to be shot down in flames!
As for support of this "Leonard Susskind - Why does mathematics work? - Differential Equations in Action" see
 
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Simon Peach said:
Now if we could instinctively think in more the 3 dimensions wouldn't it make thing a lot simpler to explain the universe. E.g. string theory etc etc?
Maybe. Maybe not. :smile: I'd say it depends on the Universe. The Universe as we know it seems to have 3 spatial and 1 temporal dimensions. There are no compelling experimental evidence of anything else, yet.
 
It's an age old question: did we invent math, or did we figure it out?

We probably won't know until we meet someone else. The fact that physics is so elegantly described by maths makes me believe it's a fundamental part of the universe in some way.

Humans only have experience with physicality in 3D, but lots of us think in higher dimensions all the time, just not in the way you're thinking.

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Is a 5D object that someone like me has no trouble visualizing and manipulating mentally.
 
We think in 3+1 dimensions because of perceptual constraints. If thinking in higher dimensions conferred any tangible survival advantage, we could reasonably expect ourselves, and other animals, would already have so adapted. None apparently have, therefore it is safe to assume 3+1 is entirely sufficient for survival purposes.
 
Yes I can understand that we think in 3d because that is what we experience, and yes we can think in more that 3d if we practice. But that wasn't the original question, it was, if we thought in more than 3d would it make maths and physics simpler?
 
It would really complicate differential equations. I consider higher order integrals worse than an ice cream headache.
 
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Chronos said:
It would really complicate differential equations. I consider higher order integrals worse than an ice cream headache.
maybe not, maybe it would make things a lot simpler
 
Simon Peach said:
maybe not, maybe it would make things a lot simpler
This is just an opinion unless you can show it mathematically. PF is not big on opinions, so how about you SHOW it mathematically? How about with a higher order integral, as @Chronos suggested?
 
Last edited:
Well I would like to know why Pi keeps showing up in places that have nothing to do with circles and lines.
 
  • #10
rootone said:
Well I would like to know why Pi keeps showing up in places that have nothing to do with circles and lines.
It's actually a secret plot by us engineers and physicists to drive mathematicians crazy. Don't tell anyone.
 
  • #11
phinds said:
It's actually a secret plot by us engineers and physicists to drive mathematicians crazy. Don't tell anyone.
Well this just an opinion Too !
 

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