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I'm reading Michio Kaku's book Hyperspace, a very interesting read. It's premise is that the fundamental forces of the universe can be unified and simplified in higher dimensional space? And explores various mathematical and geometrical explanations or possibilities of such physical laws. Parallel universes are also explored.
What has caught my interest the most is the Kaluza-Klein theory, which seems to explain this concept quite well. However due to one of its postulates the theory can neither be proven nor disproven by any technology that will be available within the foreseeable future.
I chuckled at the concept of there being an idea that cannot be proven or disproven, it seemed familiar.

Catnublia 6 May 20
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14 comments

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Cannot be proven Now. At some future may be resolved.

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I've listened to two audiobooks by Michio Kaku. He talks some really deep subject matter, but I wish his calculations were more searchable.

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I love theoretical physics!! The most outrageous hypothesis I have heard thus far is one by Donald Hoffman. He claims that because everything in nature is examined through human consciousness, that actually consciousness “constructs” the reality we see, such that the world we experience is merely a user interface, and what is truly there we actually do not know.

From this idea he states that if we can find a mathematical equation/model of consciousness, we might be able to understand or solve some of the greatest quandaries of modern physics.

The idea is that the reason we cannot reconcile quantum theory and general relativity, for example, is that we are trying to understand “external” phenomena before understanding the subjective framework from which it emerges (consciousness). So, in order for a mathematical model of consciousness to actually be viable, it must also allow us to derive both quantum theory and general relativity from it.

Hoffman uses the analogy of icons on a computer desktop. The icons themselves are part of a user interface that makes the computer easily accessible and comprehensible to us. The icons do not actually exist in the way they appear to exist. In fact, what actually exists is a series of “ones and zeros” that are interpreted and displayed as icons. Hoffman’s theory states that our consciousness interprets “reality” and that the world we see is the equivalent of the icons on the desktop.

If you are interested, check out this video on the topic:

That does sound outrageous, but so was general relativity and quantum mechanics when they were first posited. I'm just wondering, say hypothetically consciousness does construct what we perceive as reality like an interface, does Hoffman have any explanation why the basic principles of reality (like time, gravity, grass is green, night is dark etc.) Are all the same across every consciousness.

@Catnublia its interesting. He actually says the opposite, sort of. He uses the example of how brain damage or genetic differences can lead to different perceptions of the external world to show that differences in consciousness can give rise to different “user interfaces”.

Moreover, he contends that consciousness is evolved to give us the best chance of survival, so it makes sense that all members of humanity would have the same or at least very similar user interfaces. In addition, he doesn’t say that there is NO objective reality, simply that the reality is very different than what we actually experience.

S.W.A.G. Scientific Wild Ass Guess.

@pye-rate it’s definitely in the realm of a hypothesis with no experimental evidence to support it right now, but this guy is no joke. He is not hoping for or starting with an assumption of his own sacred cow. I personally am very interested to see how this pans out, because a positive or negative result would be of great benefit to the scientific community.

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I'm really hoping that something soon gets us to a falsifiable theory that ties physics together. There are multiple string theory variants, each of which work mathematically, but which are not compatible. Until we find a way to test them, we will continue to have divided physics. These different ways to reconcile physics are very interesting in the meantime, at least.

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Hearing about (what to me are) new ideas, is always exciting.
A bit off topic, but...
No matter how advanced we are, from what we were, there are always infinitely more to learn.
Part of humanity's problem exist because people lose the capacity for awe, for playing, open mindedly, with new and innovative ideas!
Sure, reject a flat earth idea, if you like. Just take a sec, look at it nonjudgmentally, if nothing else, it's good practice!

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Well that makes me smile. Good report!

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Very familiar! Ref: Special and General Relativity.?

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I don't have the data to back it up, but I have an overwhelming feeling (so scientific!) that everything from the big bang to the heat death of the universe, and everything in between, is all part of an ongoing evolutionary process. What I mean is, I think all the sciences are merely exploring rarified and specific aspects of the same overall evolutionary process. Macro to subatomic. But, it's just a speculation of mine. For now. Then again, I also think that Time, the fourth dimension, is also a spacial dimension like length, width, and depth. I might be a crackpot. lol

I like that.
If anyone tells us we cannot postulate, without proof, (as long as don't claim it is true) then poo to them.

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Be careful. If the book is not packed full of complex mathematics, then it is as descriptive of the universe as poetry.

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You will go far in life. ?

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Showing my age i guess ... Kaluza-Klein theory ... i just knew it as "Unified field theory of Gravitation" - lol such as what Albert Einstein was working towards?? ... the whole concept is quite logical to me - if we consider that all matter is, is just energy vibrating at set frequencies - if we can alter the frequencies then we can alter states completely and matter, mass and gravity would cease to have the effects we see today.

I personally believe this state is what happens to our energy essence (soul if you like) when we die - we transfer back to the universal pool to be drawn on in another place / time. Death could be little more than a portal from our bodies back to the sources of universal energy.

Yep, no matter how advanced we are, from what we were, there are always infinitely more to learn.
Part of humanity's problems exist because people lose the capacity for awe, for playing, open mindedly, with new and innovative ideas!
Sure, reject a flat earth idea, if you like. Just take a sec, look at it nonjudgmentally, if nothing else, its good practice!

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My mind was shaped by Descartes. That means I doubt everything as a systematic way of approaching things. What you have said is all true and yet, I doubt your age.... Not just this posting but some other things you have said. Your gender is not relevant at all, I just find really hard to believe an 18 years old knows Kaluza-Klein. Maybe life has changed that much and there is just too much information available? Perhaps a better question is, you should be college bound.. what do you have in mind, where to go and what major to work on?

I am working on acceptances to universities, the plan if to major in astronomy and astrophysics

@Catnublia ok, I'll have to call the benefit of the doubt here but damn, if you are really aware of all those concepts at that age then you should be bound to great things. Keep us posted then...

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I recommend "The Fabric of the Cosmos" by Brain Green and also "The Cosmic Landscape" by Leonard Susskind. Both of these guys are string theorists as is Kaku. The other competing theory is "Loop Quantum Gravity" which hasn't gotten the popular traction but is no less compelling. Here are some references for you:

Fabric of the Cosmos:

[amazon.com]

The Cosmic Landscape:

[amazon.com]

Three Roads to Quantum Gravity

[amazon.com]

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I'm reading this right now. [goodreads.com]

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