# SamBridge

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## Posts posted by SamBridge

### Arrow of Time universe acceleration

not sure what you mean by actual cause, the term arrow of time is simply a descriptive of entropy change to measure time. pretty much an analogy. Time itself is not controlled by entropy. Time also doesn't control entropy. The two are unrelated. The arrow of time is simply a model of time like a clock or measuring a second via beta reactions. Change in entropy follows the ideal gas laws in cosmology in the same principles as a gas in a tank.

Time being a measure of rate of change of events. its value as a vector only means it has a forward or backward mathematical relation. In the real universe outside of mathematics time can only flow one direction forwards. No process can reverse time.

Or another similar usage the use of the Hubble flow aka scale factor in cosmological time. In this case we use the expansion history as our clock. However that does not mean that if the universe is contracting time is running backwards..

Sounds to me that your under a misunderstanding of a multimedia misconception.

I recommend you study what entropy really is..

http://en.wikipedia.org/wiki/Entropy

a key note is that entropy is a function of state

http://en.wikipedia.org/wiki/Function_of_state

now I particularly want you to read this article, as it describes how a decrease in entropy is performed and its relations

http://www.physics.ohio-state.edu/p670/textbook/Chap_6.pdf

now after you read how to decrease the entropy in a tank, does it make sense to say time flowed backward in that tank? while time flows normally outside of it?? Now apply that same scenario to your contracting universe.

I don't know that you understand "cause." Not cause as in "because," cause as in "this moves here, hitting that thing, causing it to move here," what is the reason for time's arrow exists at all in the first place? Why isn't time just stopped?

### Modern mammals vs Dinosaurs

This is simply not true

Well, except that it kind of is. These large dinosaurs we're talking about here aren't the slow ones you see in Jurassic Park (which got anatomical aspects of dinosaurs wrong), those Brontosaurus were fast, which takes enormous amounts of energy. Dinosaurs were not "hot blooded" as you think mammals are. They had a higher temperature at their size not due to being like mammals, but due to their Giganothermy. Dinosaurs as you might know are descended directly from reptiles, which are cold blooded, but were able to grow so big and keep a high Metabolism, not because they were hot-blooded as modern mammals, but because they were "luke-warm" blooded, and their body temperature as adults was regulated not by the enzymatic reactions of mammals, but by their sheer size resulting from their Cascade Evolution, achievable only if the dinosaurs were able to initially take in energy from their environment just as reptiles did.

### The Debate Of Free Will

Suppose someone decided of their own free-will, not to go to the bathroom. Their bladder and bowels would eventually reach bursting point, explode, and cause death.

Doesn't matter, they chose not to move their body to the physical location where a bathroom is, and free-will only has domain over what people can agree they have control over. If someone can't control it at all, then it has no part in considering free-will.

### What is "real" in physics?

Really Sam, I'm disappointed.

I am too, I thought you knew better than to say an imaginary thing is real.

Discussion like this is just an insulting waste of time.

Then don't discuss that way.

Of course it is easy to change what someone said to attempt to falsify their assertion.

It's also easy to use the quote system,

Reality includes both material and non material nouns. Neither type is more real than the other.

A 25 foot spider is material and imaginary.

To see you're clearly using faulty logic to being with. A material 25 foot spider is material, and an imaginary 25 foot spider is imaginary. An imaginary spider is not a real spider.

If you wish to dispense with English, the official language of this forum, there is nothing more we can discuss.

If I wasn't using English you wouldn't be able to provide a counterargument to anything, obviously.

This is of course not true but since you eschew English itself how can we discuss whether anything is 'real' or not?

I dare you to find a quote where I said "let's not use English anymore." Now you're just being insulting.

That's a circular argument. You can't show that something can't be measured by claiming it can't be measured.

Oh, so I can measure the imaginary 25 foot spider then? Where is it? I don't see it anywhere...

Sorry, what? Red? Blue? Left, right? These are abstractions. According to your previous question, they don't actually exist. We cannot speak of them, since they are immaterial.

The word itself doesn't exist as anything more than electrical pulses, but the thing they are used to describe can exist in the same exact manner that mathematics itself doesn't physically exist at all, but things like motion and forces still exist. Mathematics is merely an abstract language to try and describe measurements. Unless you're saying measurements don't exist...

### Arrow of Time universe acceleration

Yeah I mean I already know that entropy is used in the arrow of time, but how about an actual "cause"?

### The Debate Of Free Will

Perhaps the question whether we have complete "free-will", can be answered thus - we all have to "go to the bathroom", as the admirably courteous Americans politely put it.

The process is disgusting. Would we actually choose to do such a thing, if we had free-will?

What you're describing is entirely different. You're describing an automatic process that no one would agree they had control over. They don't have control over whether or not the feeling arises, but they have control over when/where they go go to the bathroom. In fact they can get sick from choosing to not do it. If someone can choose light themselves on fire and sit still while burning to ashes even though they can't control the process of combustion, I think someone can control when/where they go to the bathroom.

### What is "real" in physics?

Yeah

I don't understand this. Who hasn't answered what?

Anyone.

I answered this in post#25 with two examples. You cannot seriously expect me to list a measurement method for every possible non material noun?

But then we can't prove anything immaterial exists.

Whether there are any observers for any phenomena does not alter their reality.

Exactly, so if there's no one around to invent the word "math," and there's no symbols and equations floating around through space, yet reality still exists, so math is separate from reality.

Nouns can be material or non material.

Nouns are an arbitrary label, they have no physical relevance.

The opposite of real is imaginary.

Any word you use was imagined.

A 25 foot spider is material and imaginary.

No it's not materiel because you just imagined it, and you already said what you imagine is the opposite of real.

I'm sure you can think of plenty more examples.

Imagining something doesn't magically make it exist.

### What is "real" in physics?

I'm sorry, Sam, I still don't understand your point or points, in relation to either my post or the thread topic.

You don't have to, because questions are just questions, not necessarily points. Just answer the questions.

### Modern mammals vs Dinosaurs

When have I suggested this would be the case?

You didn't, I did.

Sauropods would have nothing to fear from the fauna in this era, but I wonder if the flora, of today, would be suitable for their digestive system; if not they would quickly starve.

The larger ones wouldn't.

### What is "real" in physics?

I can tell by looking at a stone or star shape if it is round or pointed. I can say an apple is round, but a banana is stick shaped.

I said that science devises methods of measuring the roundness or angularity or other shapes, where the assessment is more vague in common English.

And the locations of different components of the rocks are physical.

Furthermore I said that If the object exists, its shape exists.

But if no one was around to label it as such, who would there be to distinguish what a shape is?

I can prove that by tracing round the outside and removing the object from the universe (ie destroying it)

But I still have the shape.

I'm pretty 100% sure you can't just magically pull a circle out of the universe.

Again maths provides us with ways of measuring. It is not usual to describe a circle by the emthod of envelopes, but it can be done.

And math itself isn't physical, nor the universe itself, it is simply a tool for approximating.

### The Debate Of Free Will

I'm seeing a lot of 'I think," but what about some "I know"? I think this article http://plato.stanford.edu/entries/compatibilism/ gives a good overview of the different sides of issue and how they are combined. We have this http://plato.stanford.edu/entries/computational-mind/ but also have

http://en.wikipedia.org/wiki/Uncertainty_principle

Obviously, we can identify patterns, but just as obviously, they are not 100% predictable, and the future doesn't even exist. So the answer is somewhere in the middle.

### Interesting UFO footage

But the film shows it obviously moving against the background. It does have a slight look of separation from the background as though it was added but I can't be sure, it is an odd looking object for sure.

No you're somewhat right, I've done photograph clouds before and I have seen lens-like clouds that are isolated with no mountains around on multiple occasions. But, I can tell they are not UFOs because I can see them dissipate over local lakes, sometimes enough to fade away mostly and stretch out. Isolated lenticular clouds can sometimes form from waves of air movement itself in a powerful gust picks up a slab of moisture like a pileus cumulonimbus effect as opposed to mountains, but only very rarely, about as rare as kelvin helmholtz clouds.

Just Incase anybody thinks I'm making it up I want to prove why I wouldn't ---- I know everyone is conscious and therefore equal and that that's why I wouldn't lie or hurt~

About 2 years ago I went out on the driveway to wait for the school bus and it was the morning and the clouds where a dramatic scene, the whole sky with the clouds was orange and such, and it was windy also, and then I noticed a red light in the clouds which was a vivid red-light-dot on the left side of the sky, and for about 20 seconds it was flying to the right side and it was going fast, like after the 20 seconds it was from one side to to other, and while it was flying it went in evvvery direction, it was going up and down and back and forth going in round circle movements to the right through the clouds, and as it was going back and forth through the clouds you could tell it was going behind the fog and the light was defracting more, and after it got over to the right side it like disappeared, I think I remember thinking "woh it didnt even look like it went backwards through the fog, it (this is maybe) just looked like it slowly disappeared and got dimmer and like teleported" What was it???

Although he may be somewhat untastefully abrupt, he has a point. Some small airplanes can maneuver very easily and are often closer to the ground in a small enough radius to go from one close end to another. Otherwise the only other thing that could simultaneously emit light and accelerate that fast in 3D space in so many different directions is ball-lightning or a really small remote control device with strong lights.

### What is "real" in physics?

An unanswered question is a logical argument?

In ordinary English we can identify non material nouns ie separate out some quality from an object eg roundness or hardness.

In science or maths we can be more specific about these and even develop ways of quantifying these non material nouns.

Reality includes both material and non material nouns. Neither type is more real than the other.

In fact as soon as you have a single material noun, that you can declare to be 'real', I can find a non material property it possesses which must therefore be as real as the object itself.

But, how do you measure something that's "immaterial"? And since can't measure it, then how do you know it exists?

I can find a non material property it possesses which must therefore be as real as the object itself.

Physical and immaterial are antonyms, something cannot be physically immaterial just as a red object can't be blue and going left isn't the same as going right. The fact that you can say something is immaterial proves there is a difference between something physical and something that is immaterial.

### Modern mammals vs Dinosaurs

They grew that big because of predation and there's no reason to think the predators stopped growing.

As I said before, mammals cannot simultaneously that grow large and be as mobile as dinosaurs, their metabolism would be too high, that's why the biggest they really get on land is elephants. Elephants still get eaten by lions and tigers occasionally, but they just can't evolve to be much bigger, so instead they travel in groups.

Throttle back a bit dude, this is the speculations section, no one expects a time rift to open and see an apatosaurus come running out...

And I don't expect someone to trust a TV show more than rationality. You had question, that's fine, just don't use the TV show as the answer, otherwise there's no point posting here.

### Modern mammals vs Dinosaurs

The TV show was just the spark for the idea, why is that such a bad thing?

It's not, just don't use it to create the whole fire. Get some scientific wood and rational matches.

### Modern mammals vs Dinosaurs

This misses the point completely.

Except that it actually doesn't because we can imagine a scenario without a TV show that still follows patterns we scientifically measure. A TV show won't do that, but we can, we can adjust the parameters to what makes sense in our own minds, without a TV show, based on scientific knowledge.

Really: why not?

Because they're huge and there's not much that can actually hurt them. Whales don't have many predators, the only predators the smaller ones do have are giant squid, and even those squid don't eat blue whales.

### Modern mammals vs Dinosaurs

I think Homo Sapiens might have a few weapons at their disposal that could take care of them.

### What is "real" in physics?

If something isn't real, how is it being measured?

### Objective Global Cooling

What he said...?

### Modern mammals vs Dinosaurs

In fairness, no animal in the history of the Earth has ever messed with a brontosaurus and lived.

Then that just shows brontosauruses would still remain unchallenged if they lived today...by both other dinosaurs AND mammals.

I think I just figured out a wy to control the excess deer population. All I need are a pack of velocirators and an Abrams tank.

Until velociraptors start uncontrollably reproducing because of adaptive and smart they are for surviving,

In one episode a huge flock of pterosaurs came though, this what made me start this train of thought. Obviously one T-rex isn't going to reproduce so any damage he might do would be limited.

To Primeval's credit the creatures that come though are often just annoying rather than dangerous, If it was US based every incursion would be a T-rex.

I think that modern mammals would give a good account of themselves over time. Lions could certainly kill small dinosaurs and babies of larger ones.

I think the dinosaurs egg laying would be their Achilles heel, one sauropod gravid with eggs would simply lay them and walk away, a passing honey badger would make short work of them.

A Kodiak bear is quite formidable as a predator, it would be interesting to see how one would handle a moderately sized predatory dino...

I'm not sure but I think I read where some dinosaurs were pack hunters as well.

I would not recommend using some pop-culture TV show as the basis for any scientific venture.

### Discussion that Einstein was an idiot?

Was Newton wrong because he didn't thoroughly explain gravity? I don't think so. Same thing with Einstein. Sorry, but I don't think one person can do it all.

No they were actually wrong, it's just that they had good models for the data of the time period which was later found to not model everything.

### Computational Theory of Mind

Observation in itself explains every system in he universe

Not with epistemology. Observations only give us data for an approximate model.

universe and sequentialize it observationally, then there's no need for math.

How would you define where you pinpointed everything without math?

### Computational Theory of Mind

You're talking about quantum computing right? Or are you talking about the brain?

I'm talking about a relation to both. You can't apply one system to every other system in the universe, it just doesn't work, there will always be places where the approximations diverge.

### Modern mammals vs Dinosaurs

You do have a point, but it is somewhat predicted that mammals even such as primates would hardly be around if dinosaurs were still around. That said, do you think a bear is more powerful than a group of 2-3 velociraptors? Do you think any known mammal is going to mess with a herd or even a single brontosaurus? Animals like lions and tigers would be the ones to challenge dinosaurs but only the ones around their size and up to the size of an elephant, and frankly land mammals can't evolve to be as big and mobile as larger dinosaurs because their metabolism would be too high. But if dinosaurs were still around, we don't really know what mammals would still be here anyway, except for maybe ground mammals.

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