Google Webmaster Tools
 
There are certain things that are difficult for mere mortals to conceptualize. One that I find particularly challenging is the LDS doctrine of “There [being] no such thing as an ultimate beginning, a time prior to which there was nothing” (Quote taken from Mormon Doctrine). From a mortal perpsective it seems like there should be a beginning to the universe; this is one reason why the Big Bang theory is so popular - it postulates a definite moment in time when everything began. How could there be no beginning?

Something funny about the idea of “no beginning” is that it is equally difficult to conceptualize the opposite, of there ever being a beginning. If we assume for a moment that there was a beginning to the god-created universe, then we must ask, who created the first god? An all-powerful being could not have just "poofed" into existence.
 
If you spend too much time thinking on the apparent impossibility of both positions, you run the risk of experiencing a minor ontological crisis over whether the things we call life and the universe really exist.
Thankfully Descartes provided a temporary escape from these sorts of existential crises. Regardless of whether there was or was not a beginning to the universe, you can be certain that you exist in a universe by virtue of the fact that you are thinking about these very issues. Cogito ergo sum – I think therefore I am! 

But wait, there's more.

Another influential philosopher named Bishop Berkeley (namesake of Berkeley University) pointed out that for something to exist, including ourselves and the universe, it must be perceived. He called it “Esse est percipi” – to be is to be perceived. You've no doubt heard the statement, “If a tree falls in the forest and no one is there, does it make a sound?” Bishop Berkeley asks us to consider whether the tree even exists at all if no one ever perceives it.

If you are skeptical of the need for something to be perceived in order for it to exist, you are in good company. Einstein was very skeptical of esse est percipi. The notion of something having to be perceived in order for it to exist led him to quip, “When no one is observing the moon, is it still there?” He obviously believed that the moon exists even when no one is observing it. So if Einy rejected esse est percipi then the matter is settled, right? Not quite. 
Esse est percipi is supported by experiments in quantum mechanics.

Consider a classical quantum mechanics study where electrons are fired one at a time from an electron gun through a double slit barrier. When the positions of the electrons are registered on a screen behind the barrier with no one present, the single-fired electrons create an interference pattern that can only be explained by the electrons behaving like a non-physical wave of potentialities after leaving the electron gun. However, when people stand at the barrier and observe electrons going through the slits, the electrons go back to being physical particles as evidenced by the pattern they leave on a screen. The upshot of all this is that when no one observes the electrons they behave like non-physical probability waves, but when people observe the electrons, they behave like physical particles.

Dr. Quantum describes this process well. Click on the video below.


So how do we reconcile esse est percipi and the quantum slit experiment with our common sense notion that physical things continue to exist even when they are not being perceived by mortal beings? The answer is the Light of Christ. 

The Light of Christ is a divine source that emanates from the presence of God. It gives him instant knowledge of everything throughout all His creations.  It is that Light by which He knows at an instant how many hairs are on the top of our heads.  It is that Light by which He knows instantly that a sparrow died and fell to the ground in the mountains even though no one else knew it ever existed. I
t is that Light by which God perceives all things, thus bringing all things into continual existence
 


Comments

11/04/2010 16:34

I highly recommend Henry P. Stapp's book: "The Mindful Universe."

For me, consciousness is material. If consciousness is necessary to collapse the wave function, then what collapses the wave function for consciousness to even exist?

Well, I will leave that to your theological imagination, which itself is a collapsed wave form.

Reply
Stan
11/04/2010 19:22

I didn't realize the double slit experiment changed based on the activities of the observer.

Reply
Grant
11/05/2010 13:14

Two things...

1:

"From a mortal perpsective it seems like there should be a beginning to the universe; this is one reason why the Big Bang theory is so popular - it postulates a definite moment in time when everything began."

No, it does not. The Big Bang simply identifies a point in time when a period of explosive space time expansion began, it does not at any time specify that that is equivalent to the beginning of "everything".

2:

"However, when people stand at the barrier and observe electrons going through the slits, the electrons go back to being physical particles as evidenced by the pattern they leave on a screen."

No.

When the *photons* are passing through the double slits undisturbed they form an interference pattern on the screen because the two rays of light passing through the two slits are configured in such a way that they are still coherent with each other when they recombine at the screen and thus experience constructive and destructive interference depending on whether they are in or out of phase with each other at any particular point on that screen.

When they talk about someone "observing" the photons pass through one of the slits they are talking about placing a detector at the slit that can "see" the photon passing through it. The detector, in the process of "seeing" the photon, physically interacts with it and delays it's travel. The light ray is thus disturbed, and it's coherence with the ray passing through the OTHER slit is destroyed. That is what causes the interference pattern to be eliminated.

It has absolutely nothing to do with whether anyone is there to see it or not. I can stand and look at the two slits the photons are passing through all day long and nothing will happen to the interference pattern being generated. It is only if I physically disturb the beam through one of the slits that the interference pattern is destroyed.

The idea that it is the simple act of "observation" that causes the destruction of the interference pattern is a distortion popularized by new agers and other woo peddlers trying to claim quantum mechanics suppports the idea of some kind of universal force of consiousness or something.

It doesn't.

Reply
Dave C.
11/05/2010 14:09

Grant,

Thanks for dropping by.

Until someone gives us a clear description of the singularity that existed at the moment of the big bang, including adequate scientific laws describing that singularity, then for all intents and purposes the big bang is the start of our space and time as we know it.

Your interpretation of the double slit experiment is intriguing and may very well be correct. Your position on this matter is very similar to Bohm's who postulated that particles always have a definite position and velocity, but that we cannot measure both simultaneously, or put differently, that measuring position influences the velocity or course of travel.

However, I wish to point out to readers of this blog that the jury is still out on the correct interpretation of the double slit experiment (so says best selling author and physicist Brian Greene). So, Grant, while I like your interpretation, it may be wrong. I don’t know. What I am sure of is that people who favor the interpretation I've presented in this post are not simply new agers and woo peddlers trying to claim quantum mechanics.

Reply
Grant
11/05/2010 14:23

"...then for all intents and purposes the big bang is the start of our space and time as we know it."

Only in the sense that yesterday is the beginning of the life of this new guy in our office "as I know it" since I have no knowledge of his existence before that time.

That does not cause me to claim that he didn't exist prior to that time.

The bNeither doe the Big Bang theory now, nor has it ever, claimed that the Big Bang was the beginning of "everything". It is simply the beginning of the phase of expansion of the universe we are currently capable of observing.

"Your interpretation of the double slit experiment is intriguing and may very well be correct."

I aced my physics of optics classes thank you very much, the double slit is day one beginners material. It is not "my interpretation" of it. It is impossible to observe a photon passing through the slit without pysical interaction with it, and it is nearly impossible to maintain the coherence of the beams necessary for interference if you physically disturb one of them.

"However, I wish to point out to readers of this blog that the jury is still out on the correct interpretation of the double slit experiment (so says best selling author and physicist Brian Greene)"

Kindly show me where Greene states that the jury is out on *this particular aspect/implication* of the experiment. I am rather confident you are misreading him if you think he says that.

Reply
Dave C.
11/05/2010 15:32

Grant,

I am pretty sure about what Greene is saying here. Feel free to correct me if I am wrong.

"Particle properties . . . come into being when measurement forces them to. When they are not being observed or interacting with the environment particle properties have a nebulous, fuzzy existence characterized solely by a probability that one or another potentiality might be realized. The most extreme of those who hold this opinion would go as far as declaring that, indeed, when no one and no thing is looking at or interacting with the moon in any way, it is not there. On this issue, the jury is still out."

The Fabric of the Cosmos, Brian Greene, pg. 121

Reply
Grant
11/05/2010 16:08

Yes, that's about what I thought he would be saying.

Please notice that in the first part of that comment, where he is talking about the actual implications of the experiment, he is talking about *measurement*, not observation by some "consciousness". Measurement involves a physical interaction with what is being measured.

You will then notice that he characterises the idea that things like the moon not existing if nobody is there to look at them as a claim made by "the most extreme". I can assure you it is not a view Greene holds, nor is it a view that anyone I have ever met who has even a rudimentary familiarity with Quantum Mechanics holds. You might consider e-mailing him and asking him what he meant by the jury "still being out", I suspect he was being facetious.

I can after all disprove the hypothesis that something ceases to exist when no conscious observer is looking at it in about 5 seconds with a video camera and a sealed box.

Reply
Dave C.
11/05/2010 16:53

I agree that Greene does not support the radical notion that something like the moon needs to be perceived in order to exist. Yet I personally don't think he was being facetious about the jury being out (?) Anyway, thanks for your input.

Reply
djinn
11/06/2010 12:08

"When they are not being observed or interacting with the environment particle properties have a nebulous, fuzzy existence characterized solely by a probability that one or another potentiality might be realized."--Brian Greene

An object loses its fuzzy existence the moment it interacts with the world in any sort of way, such as being hit by a light photon--it can then be measured as a particle. But this has nothing to do with whether the object in its wave/particle state ceases to exist. The moon is up there.

p.s. It's Bishop "Berkeley," I'm sure it's just a typo.

Reply
Dave C.
11/06/2010 13:15

djinn,

You are right on the spelling. Thanks. I put in the superfluous "e" ;)

Reply
Daniel B. Smith
11/12/2010 09:08

I was intrigued/bothered by the response of Grant to the double-slit experiment which was highligted in my just now Google search, and wanted to note that the latest version/modification of that concept I can recall was in 1990 (and there may be a new one, ...been busy) and used gold foil to register the strike after the light entity...can't remember if they were using photon's or what...made "the choice" ...so it was after passing through the slit(s) that the entity was then "measured" on the back wall (foil) capturing the pattern. So, interference to delay does not really come into play because nothing is measured until it actually makes the pattern after it strikes the foil...unless you add/change your explanation, etc...and we know many have tried. May I suggest though, the act of observation is an important part of what Einstein identified in his theories of realitivity. One shouldn't be so ready to isolate and reduce a problem so tightly to generate an explanation that appears to not hold up in general. Those who follow the two slit from start to finish through all of science readily agree that it is a mystery. I tend to favor the approach that whatever "wave/particle" entity that is used, that entity when tested is simply interfering with itself as the decision/observation/measurement is being made. It holds up best. Anyway, we know what is occuring, we just are not able to explain why right now. If we could life would be different for us right now and we would all know it.

Reply

Your comment will be posted after it is approved.


Leave a Reply




Google Analytics