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Questions tagged [physics]

Physics is the natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.

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65 views

According to physics, do our visual thoughts (possibly others) appear to be not real because they occupy physically inaccessible higher dimensions?

I wanted to know how physics explain the mind.I will first share my thoughts on whether thoughts are real or that the mind is real (Mind is the arena where we have thoughts). I think we usually ...
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1answer
34 views

Limit of energy? [closed]

What if there is any real limit of energy that can ever be accumulated in the gravitational field? Described as: E(max) = m(max) * c^2 So... If some black hole reached that limit, (I would expect) ...
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1answer
110 views

What kind of philosophy of the foundations of physics can there be?

I'm currently trying to read into topos foundations for theories of physics and I wonder if we are really able to give a philosophical foundation for what a possible future theory of physics should ...
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4answers
261 views

Is it true that we are almost certainly Boltzmann Brains?

I read an article and I got curious about the topic of Boltzmann Brains. I read some more articles and posts about the topic and it seems to me that the arguments are that BBs would outnumber us by ...
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2answers
99 views

What is Robert Nozick alluding to by a “vast generalization” of Feynman’s path integral?

I was reading a book from the philosopher Robert Nozick (Invariances: The Structure of the Objective World), and there was something that confused me. Around page 159 he argues that every logically ...
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3answers
132 views

What are the benefits of three dimensional space? [closed]

In zero dimensional space, differentiation is impossible. It's necessary (as far as we know) for things to be in two different places to distinguish between them. So, as Euclid says, a point is that ...
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1answer
66 views

What is the historical relationship between physics and philosophy?

I often hear people say that physics is/was part of philosophy or that philosophy gave birth to physics but I think this isn't correct. Imagine a big country called anonati. After a civil war, ...
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1answer
120 views

Does the reversibility of laws of physics prove that causality doesn't exist?

Does the fact that the fundamental laws are symmetric with respect to direction of time show that causation does not exist? Since causality always requires the cause to precede the effect, but laws of ...
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0answers
200 views

Is it there any theory or model in theoretical physics that is akin to Tegmark's Mathematical Universe Hypothesis?

Physicist Max Tegmark proposed a hypothesis that asserts that all mathematical structures do exist as universes. (https://en.wikipedia.org/wiki/Mathematical_universe_hypothesis) But this hypothesis ...
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0answers
121 views

Did Wheeler's “It from Bit” allow inconsistencies to exist?

Physicist John Wheeler proposed a model of the universe based on "It from Bit" asserting that the world is fundamentally information. I've been told both that Wheeler's It from Bit is compatible with ...
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0answers
84 views

What is the meaning of using a mathematical structure to describe physics?

I'm trying to understand the meaning of using a mathematical structure in order to do physics, what does this really mean? My idea is that first we performs experiments on a physical system in order ...
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62 views

Can we measure “braverity” objectively?

By saying "bravery/courage", we implicitly mean a hard task that we wouldn't do it in daily life, and we have to sacrifice something to get it - we are scared. It is, after all, just a cost-benefit ...
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98 views

Perpetual Division

I recall a story about a philosopher who proposed an idea that everything is essentially perpetually divisible. That is to say, you can divide a whole into two halves and for each half (regarded as ...
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What were Hegel's criticisms of Newton?

I recently read this thread THREAD describing the relationship between Hegel and Newton. Apparently, Hegel misread Newton's principia, and criticized a specific point of science on Newton. This is ...
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3answers
115 views

If the universe is flat, how can the Earth be round? [closed]

Just another silly question that may deserve a wise answer.
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2answers
149 views

Why is modern physics still connected to Western notions of time? [closed]

as Rasheedah Phillips says “Afrofuturism uses a completely different construct of time and engages a different notion of time consciousness and notion of the future than does the European brand of ...
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2answers
266 views

What is the most basic thing? [closed]

I wanted to know that what is the most basic or the basicestest thing that makes up the universe? Just like a wall is made up of bricks and bricks are made up of atoms and atoms are made up of ...
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Are all unobservables in physics very small?

Are all unobservables in physics very small? I think I've read that the interior of the sun is an unobservable, and so entity realists like Ian Hacking have to claim we can't know anything at all ...
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What would a fractal universe tell us about Time?

To begin with let's look at what is known as the coastline paradox. Briefly it goes like this: If you measure the circumference of Britain with a 1km long stick, and then do the same with a 100m long ...
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223 views

Why are physical laws so simple?

Many of the most general physical laws are very simple, from Einstein's law of General Relativity to Schrodinger's Equation in quantum mechanics. Why aren't are most basic physical laws incredibly ...
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2answers
115 views

What's the difference between logical modalities and physical modalities?

I am just wondering what's the difference between the two. I would say that there is something different, but honestly I can't define what it is exactly. What do you think?
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2answers
356 views

Can something be really random?

Before you tag my question as a duplicate I want to make sure you understand it. Earlier I saw a video about Schrödinger's cat that says once we open the box to see if the cat were alive or dead the ...
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1answer
115 views

If time is going to end, then did it have a beginning? How do we know time will end?

Why do most physicists believe time is finite? What proof do we have that time is not infinite and therefore will never end? And how can 'time' actually come into existence if something coming into ...
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176 views

Philosophy - Is Nietzsche's Eternal Return theory true?

Is Nietzsche's Eternal Return theory true? I am extremely worried that it is because of the very likely fact that Einstein's Block Universe theory is true, and what renders Einstein's Block Universe ...
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4answers
628 views

Philosophy - Does Einstein's Block Universe theory prove Nietzsche's Eternal Return theory is true?

If the Past, Present, and Future all exist in exactly the same way, then every single moment would be a ‘Now’ moment for me. it would also mean that me being dead in the future is equally real in the ...
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1answer
131 views

Philosophy - If both the Rebound Universe and Block Universe theories are true would that mean Nietzsche's Eternal Return theory true?

If the Block Universe is true, and if the Rebound Universe is also true where the universe goes from Big Crunch to Big bang then doesn't that mean that the Block Universe is shaped like a circle where ...
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189 views

Where does the sense of self come from?

We human beings experience a sense of identity, an inner personality. I assume Machines and computers do not. Animals also seem to possess consciousness and some sort of sense of self. Where does ...
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3answers
996 views

Philosophy - Does the block universe theory of time mean that life will repeat after death?

I have suffered severe anxiety, sadness, regret, and depression since I was 13, I had 2 trapped-feeling panic attacks when I was 13 I am now 17 and fighting off frequent urges to have a trapped-...
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3answers
385 views

Is there a fundamental ontology in Physics? What is the universe fundamentally “made of” according to Physics?

Is there a fundamental ontology in Physics? According to Physics, what are the fundamental "things" (whatever they may be) that in combination define the whole universe, such that they are not ...
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5answers
291 views

Why do physicists increasingly seek to understand more fundamental pieces of matter?

Why do physicists seek to study and explain more fundamental qualities of matter as opposed to stopping at a certain point and testing more predictions of macro-level models? What benefit does the "...
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1answer
63 views

What should be first according to Aristotle: the nature of being or the nature of explanation?

I see that in his Metaphysics he starts speaking of the nature of explanation as if he thinks, I think, that it is key to be understood before moving to the investigation about being. But then, in his ...
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61 views

What are the third and fourth ways in which William Charlton says “being” is used in Aristotle?

I'm reading William Charlton's commentary on Aristotle's Physics I and II, and I am having trouble with the following: Aristotle recognizes four main "ways in which a thing might be said" i.e. ...
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45 views

When Aristotle is speaking of things that are clear to us, is he thinking of entities or formulas?

I'm reading the commentaries of Aristotle's physics book I by William Charlton and he starts this debate in his commentaries. But it was too brief for me to grasp. As I understand, the question is ...
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1answer
94 views

Aristotle on the impossibility of the indivisibility - Aristotle's physics book I

I'm having trouble with the following part of Aristotle's physics (185b17-185b18): But to proceed: If their One is one as indivisible, nothing will have quantity or quality, and so what exists ...
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1answer
174 views

Do naturalists think that only microscopic physical things exist?

I was reading an article on time in physics, which is meant to emerge at the macroscopic level. This is interpreted as that it does not really exist. Is that because only microscopic physical things ...
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4answers
216 views

Is the phenomenom of “subjective consciousness” or “qualia” formally captured by any state-of-the-art Theoretical Model in Physics?

Is the phenomenon of "subjective consciousness" or "qualia" formally captured or defined by any state-of-the-art Theoretical Model in Physics? If so, can you share a brief summary of such ...
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2answers
55 views

Aristotle notion of action in his physics?

I do not understand the notion of action in the following paragraph (Phys. 199a9–20): As things are in action, so they are in nature; and as they are in nature, so they are in action, so long as ...
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proofreadiing a paper on Descartes. Need help on line “a true physics…”

I'm copy editing a paper on Descartes written by an Italian in French and then translated into English. I need some help with a phrase she uses: "... a true physics..." I have no background in ...
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12answers
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Why is the complex number an integral part of physical reality?

In modern physics, the quantum wave distribution function necessarily uses complex numbers to represent itself. If physics defines the physical reality, then what we are saying by the statement above ...
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1answer
161 views

Black hole information paradox implications

What are the philosophical implications of the black hole information paradox? Would the creation of a small super dense residue of the black hole evaporation give rise to a philosophical issue anyway?...
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137 views

Domain of free will in OUR physical system

When we speak of "free will" we often imply it to be "a particular sort of capacity of rational agents to choose a course of action from among various alternatives". This capacity is contained by our ...
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I am a physically dying human. Will I limit myself to consideration of physics or will I consider that which is extra-physical? [closed]

Humanity has understood the physics of proton bound to neutron orbitted by electron as atom. As a human aware of my impending demise, I determined to consider is death or cessation of mere physical ...
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3answers
110 views

Being transcendental and contingency of constants of nature

Given an arbitrarily chosen constant of nature (say, the speed of light c), we can confidently say that the fact that it is equal to 299 792 458 meters per second is a contingent fact about our ...
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246 views

One big theory of Everything (TOE) or multiple “domain specific” theories?

It's common to hear that physicists are trying to find a Theory of everything (TOE). We "logically" consider the more elegant / concise theory as true ... because beauty is thruth ... or is it ? What ...
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1answer
449 views

What is less than a bit? [closed]

I mean a bit of information (data). Some say (do not know exactly who) everything on its smallest level consists of information. What does the information consist of?
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147 views

Why can social sciences apply hard science concepts to other things than what they apply to?

Why can social sciences apply hard science concepts to other things than what they apply to? E.g. suggesting that social groups can be modeled using thermodynamics: http://www.eoht.info/page/...
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2answers
806 views

Shouldn't Last Thurdayism be able to be proved wrong by Physics?

From what I understand, Last Thursdayism is the belief that the universe was created last thursday. Supposing Last Thursdayism is true, if you consider going at a really fast speed when Thursday ...
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304 views

Is eternalism notion of time consistent with quantum mechanics (all of its interpretations)?

Is it consistent with quantum mechanics to think that:"We live equally in all past, present and future events" which is suggested by Einstein's relativity?
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2k views

Does all matter exist forever?

I was reading about non-duality (spirituality / philosophy) that discusses the idea that everything in reality is one, since any matter can become any other matter, (a tree can become a chair and a ...
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2answers
106 views

If we aren't approaching the final theory, does it mean there's an infinite number of natural laws?

A lot say that with every next step we make in science comes always a set of new questions. I think this means there's an infinite number of questions we can ask about the natural laws. And that means ...