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Parallel Universes Are Real

jamie posted more than 11 years ago | from the dupe-from-another-universe dept.

Space 1066

It's in Scientific American, it must be true. This month's cover story: Parallel Universes. "The simplest and most popular cosmological model today predicts that you have a twin in a galaxy about 10 to the 1028 meters from here." That number's a lot bigger than 10 to the 101.42 meters, which are the farthest observable objects in what we call our universe. And anyway, twin or not, anyone outside my light-cone is dead to me. That's just a rule I have. If you're skeptical of the multiverse, go read our discussion of a similar article from two days ago.

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first?! (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733732)

in a parallel universe i always get first post!

Re:first?! (0)

Anonymous Coward | more than 11 years ago | (#5733743)

woo and in the universe too!!

in the parallel universe... (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733871)

in this parallel universe there are no $2 sand niggahs! In home town USA we go to war with $2 sand niggahs and punish them with our advanced weapons!

I don't know about your eyes (5, Funny)

dunedan (529179) | more than 11 years ago | (#5733734)

but I can see a lot farther than 10^1.42 meters

Re:I don't know about your eyes (0)

Anonymous Coward | more than 11 years ago | (#5733742)

I can see a lot farther than 10^1.42 meters

not if you're standing in front of a wall, and there are no lights on.

Re:I don't know about your eyes (0)

Anonymous Coward | more than 11 years ago | (#5733746)

irrelevant.
re-read and try again.

Re:I don't know about your eyes (5, Informative)

DeanAsh (531960) | more than 11 years ago | (#5733747)

That is 10 to the 10 to the 1.42, which is significantly longer.

Re:I don't know about your eyes (2, Funny)

UWC (664779) | more than 11 years ago | (#5733748)

It's 10^(10^1.42)

Re:I don't know about your eyes (1, Redundant)

Chilltowner (647305) | more than 11 years ago | (#5733757)

But not 10 to the 10^1.42 meters.

In bizarro world (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733737)

I wonder if I'm more evil there, or an angel. Eh, who cares, time to toke up :)

And FP!!!

meh? (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733739)

Who gave this knob editorial powers? Somebody change his password, quick.

Sometimes I don't even know why I bother.

Religion (3, Insightful)

mr100percent (57156) | more than 11 years ago | (#5733740)

What does religion have to say about multiple universes? Would this figure in somehow?

Re:Religion (-1, Troll)

Anonymous Coward | more than 11 years ago | (#5733753)

Do you mean would this figure into if it's true or not? Um... no.

Re:Religion (2, Insightful)

hankaholic (32239) | more than 11 years ago | (#5733772)

One could easily argue that any grasp religion may seem to have on even our own universe is coincidental at best, and a matter of hopeful interpretation at worst.

Re:Religion (0)

Anonymous Coward | more than 11 years ago | (#5733789)

Maybe to you buddy, and not to me.

Re:Religion (0)

Anonymous Coward | more than 11 years ago | (#5733838)

Yes, and the primarily aethistic single-minded folks at Slashdot bestow additional karma on the parent.

Re:Religion (1)

timeOday (582209) | more than 11 years ago | (#5733877)

Okay, go ahead and argue it.

Re:Religion (3, Troll)

Anonymous Coward | more than 11 years ago | (#5733785)

Who cares? Religion is a sham, its evil, it causes all our problems. Believe in god or not, but don't be part of a religion.

I myself don't know what to believe anymore, but even when I was more religious I knew organized religion was bad.

Why should they care anyway, where in the bible does it specifically state there is NOT multiple universes? Theres lots of things that are not in the bible, but it doesn't make then less true.

Stuff like that always makes me mad, like saying if we ever find intelligent life elsewhere in the universe it means that god isn't real. How so? Maybe he made other life forms but we don't know about it.

And all the crap about science being bad, cloning bad, stem cell research bad, "not gods way".. How can it not be gods way? If God is all knowing, he knew wed be cloning since the beginning, if he didn't want it he could easily stop it. Thats so hypocritical.

And what about all the judging "you're evil if you do this, do that" etc.. I thought only god can judge, stop sinning by judging others as being sinners.

Sorry for the rant but religion pisses me off =(

Posting A/C because I'm scared of religious freaks trying to kill me for disagreeing with them.

Re:Religion (1)

Fished (574624) | more than 11 years ago | (#5733841)

Sorry for the rant but religion pisses me off =(
Hey, he said "piss"! C'mon boys, let's get him! (We know where you live.)

Re:Religion (0)

Anonymous Coward | more than 11 years ago | (#5733864)

Any of these [jesusgeeks.net] fine [jesusgeeks.com] folks [christdot.org] very well MIGHT kill you for disagreeing with them. Smart man you are to hide!

KARMA WHORE (-1, Troll)

Anonymous Coward | more than 11 years ago | (#5733786)

faggort karma whoring piece of shit who couldn't think of anything more insightful to fucking say?

fuck religion - they're all a bunch of cultists anyways...

Re:Religion (1)

JoeBuck (7947) | more than 11 years ago | (#5733865)

I suppose that if there are an infinite number of universes you can find people that believe anything ... like, that there is an infinite number of universes. :-)

Dude, (0)

Anonymous Coward | more than 11 years ago | (#5733888)

I hate to break it to you, but religion says nothing about this at all. In fact, religions doesn't say a lot of stuff about a lot of things, like the laws of gravity or evaporation or other things. That's just no its bag man, just like religion isn't these scientist's bag. They just try to explain what they see.

Re:Religion (5, Insightful)

bigberk (547360) | more than 11 years ago | (#5733906)

What does religion have to say about multiple universes? Would this figure in somehow?
Religion is too busy being abused by people who want to kill others. Call again some other time.

heh (0, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733741)

nothing to see here (literally) just move along folks....nothing to see here, please make way.

Wait a minute... (0, Redundant)

TopShelf (92521) | more than 11 years ago | (#5733750)

10 to the 10(1.42) meters? Shall I read that as 10 to the 23rd (approx) meters, or 10 to the 1.42, which would be awfully myopic...

Re:Wait a minute... (0)

Anonymous Coward | more than 11 years ago | (#5733781)

If your browser would support the <sup> tag, you'd see 10^1.42 meters.

Anyway, 10^10^1.42 is just jamie's way of writing 4e26 = 10^10^1.424915269.

first post!! (0)

Anonymous Coward | more than 11 years ago | (#5733754)

in the parallel universe of slashdot that is...

Trying to figure out..... (1, Funny)

Anonymous Coward | more than 11 years ago | (#5733755)

The gravitational pull between the two Cowboy Neal's......

Hello everybody (0)

Anonymous Coward | more than 11 years ago | (#5733758)

I am an evil alien living many metres from wherever you are. I wish to make love to your women and create a race of super babes. Please send me your women and one million dollars immediately.

Re:Hello everybody (0)

Anonymous Coward | more than 11 years ago | (#5733795)

why not try sex with our men?

Re:Hello everybody (0)

Anonymous Coward | more than 11 years ago | (#5733825)

Hmm, that is a good idea. Do you think most earth men could handle my 20 inch fun stick?

Re:Hello everybody (0)

Anonymous Coward | more than 11 years ago | (#5733856)

>> Do you think most earth men could handle my 20 inch fun stick?

Your alien race must not be well informed, your 20 inch fun stick is small compared to our fun sticks, have a look at our library http://www.goatse.cx

Re:Hello everybody (0)

Anonymous Coward | more than 11 years ago | (#5733894)

My apologies, I was talking about the radius of my fun stick. It is of course 20ft long, which I know is above average by alien standards, but after reviewing the information you provided it looks like it would fit quite comfortably.

You are the son of LAURENT KABILA (0)

Anonymous Coward | more than 11 years ago | (#5733802)

You are contacting us of discreet interest for a financial opportunity of the highest blessing.

So in this universe... (5, Funny)

ath0mic (519762) | more than 11 years ago | (#5733763)

Hamburgers eat people
/. loves Microsoft
and I can get a date.

putas (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733765)

poste del!First en español!

In at least one parallel universe... (5, Funny)

UWC (664779) | more than 11 years ago | (#5733766)

...everyone has a goatee.

typo? (0)

Anonymous Coward | more than 11 years ago | (#5733776)

>> ...everyone has a goatee.

Don't you mean ...everyone has a goatse!

Re:typo? (1)

calyxa (618266) | more than 11 years ago | (#5733848)

LOL! I wish I had mod points!

I believe in the 'everything that can happen does happen' theory, so there are universes where I'm dead, where I was never born, where I've won the lottery, where I've won the lottery _every time_, where they don't have a lottery anymore 'cuz I always win it, where they don't have a lottery anymore because Cowboy Neal always won it, where /. doesn't exist, where goatse doesn't exist....

it goes on and on and on -- everything! all of it! that's the definition of infinity, after all.

-calyxa

Re:In at least one parallel universe... (0)

Anonymous Coward | more than 11 years ago | (#5733816)

gross, even the chicks?

Re:In at least one parallel universe... (4, Funny)

joe_bruin (266648) | more than 11 years ago | (#5733818)

Parallel Universes Are Real, Unless Declared Integer.

Re:In at least one parallel universe... (0)

sxe_p06 (576333) | more than 11 years ago | (#5733857)

...everyone has a goatee.


Thank god, you said goatee, and not goatse....nevermind...Almost had a heart-attack...

Evil Bill Gates (2, Funny)

SHEENmaster (581283) | more than 11 years ago | (#5733875)

"Linus Torvalds is my best friend, through thick and thin, we'll always be together! I like you geeks!", Evil Bill Gates (with a goatee)

Video Game Analogy (4, Interesting)

dekashizl (663505) | more than 11 years ago | (#5733774)

If we exist in a simulation [simulation-argument.com] , then these other parellel universes might be the equivalent of what happens in a video game with bad collision detection that lets you leave the level, walk through RAM, and loop back again. Twould be odd to make that journey for real...

Re:Video Game Analogy (5, Funny)

ELiTeUI (591102) | more than 11 years ago | (#5733868)

Twould be odd to make that journey for real...
Isn't LSD Great? :)

ELiTeUI

But Mohammed Al Sahaf says.. (5, Funny)

Peter Cooper (660482) | more than 11 years ago | (#5733775)

"The infidel alter universe stands no chance. We have it surrounded on all 11 dimensions, and all mercenaries from the alter universe are committing suicide. We will throw them into our black holes. There are definitely no parallel universes in our universe." Did anyone else notice our own Mohammed Al Sahaf here at Slashdot has disappeared for the past three days? I wonder if he's in Syria..

Re:But Mohammed Al Sahaf says.. (4, Informative)

Kibo (256105) | more than 11 years ago | (#5733896)

Dude that site kicks butt.

Everyone should check out Welovetheiraqiinformationminister.com. [64.39.15.171]

I hope when we find him we give him a talk show on FOX.

Interesting corrolary in literature. (1)

marbike (35297) | more than 11 years ago | (#5733777)

I have only today completed the series of books called Sten. In it matter from a parralell universe is used as fuel for stardrives and basic energy.

The exsistance of anti-matter or dark matter may be the most interesting part of a universe different from our own. While I don't know if these universes have different laws than our own, it does make for interesting reading.

There are dozens of books that deal with other universes than our own. Piers Anthony has the "Mode" series, and Terry Prachett has the "Discworld" books. Each in their own way exhibit a different universe. Some are serious Sci-fi or fantasy, others humourous. But they all are a fun way to escape into a world of imagination.

Er, our light cone ought to be bigger than that (1, Insightful)

Anonymous Coward | more than 11 years ago | (#5733778)

Using an age of the universe at ~10^10 years, our light cone would be on the order of 10^10*2pi*c = 10^28 meters, unless there are significant effects making the size of the cone differ from simply t*c.

And no matter how you cut it, 10^14.2 is only 10,000 light seconds, which I seriously doubt is the extent of our visible universe.

Re:Er, our light cone ought to be bigger than that (2, Informative)

Eanmig (611171) | more than 11 years ago | (#5733843)

its 10^10^1.42 which is not 10000 light seconds

Re:Er, our light cone ought to be bigger than that (0)

Anonymous Coward | more than 11 years ago | (#5733847)

That's 10^(10^1.42), not 10^14.2.

Re:Er, our light cone ought to be bigger than that (1)

rritterson (588983) | more than 11 years ago | (#5733874)

err... i believe that the poster meant 10^(10^1.42) and not (10^10)^1.42.

My simple calculation, using your number of 10000 gives the actual value as 12667179330844198 light seconds which is ~400000 light millenia.

and . . . (5, Funny)

McDrewbie (530348) | more than 11 years ago | (#5733780)

in at least one of those universes there is already a duplicate of this post on slashdot.

Re:and . . . (1)

buyo-kun (664999) | more than 11 years ago | (#5733858)

and...

In at least one of those universes, that comment has a goatee

Re:and . . . (1)

ndevice (304743) | more than 11 years ago | (#5733902)

no, no, no...

Slashdot has the parallel universes down pat. What with the duplicate posts and such, we're even seeing the intersection of parallel universes here.

In a parallel universe, I still wouldn't get laid (0)

AlexMcCluskey (666010) | more than 11 years ago | (#5733782)

Even in a parallel universe, I still wouldn't get laid, I'd just keep surfing slashdot and speaking with a whiny voice.

Him, not me. (1)

PseudoThink (576121) | more than 11 years ago | (#5733787)

From the article: ...The life of this person has been identical to yours in every respect. But perhaps he or she now decides to put down this article without finishing it, while you read on.

Nope, you mixed us up. I'm the one that skipped the prom to watch Worf's quantum-reality episode of TNG, so I've already seen enough of this sort of thing to know better. The other "me" went to the prom and skipped the episode, so he's still new to the concept. Ha, I'm such a loser in the alternate universe!

Ace (5, Funny)

rnicey (315158) | more than 11 years ago | (#5733788)

So Captain Ace Rimmer should be turning up any moment now?

Re:Ace (0)

Anonymous Coward | more than 11 years ago | (#5733892)

"Smoke me a kipper, I'll be back for breakfast!"

Binary assumption on the existence of protons? (4, Insightful)

crumbz (41803) | more than 11 years ago | (#5733790)

What? 2 x 10^118 probablity of the protons matching up in a hubble space. The problem with this type of math in cosmology is no one knows where to set the baseline numbers. The fact that the COBE discovered 1/100,000 K difference in temperatures seperated across the survey accounts for theory of distribution accross our observable region only.

You might as well say that heaven exists X meters from here because of the probability that there is an equivalent 100 ly radius of space where I exist but my puppy dog is still alive and their is no war and I eat ice-cream everyday.

Man, I am going to have to sleep on this one...

New site. Like SLAHSDOT, BUT FOR XTIANS (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#5733793)

It is called christdot [christdot.org] (I know, FUCKING GAY, huh?); and I claim first troll [jesusgeeks.net] there.

First Jeebus Geeks, now Christ SLUT...go forth and keep torlling torlling torllin.

Girls in the Perallel Universe (4, Funny)

00RUSS (549125) | more than 11 years ago | (#5733796)

What are the odds of me getting a date in this parallel univers? cause i dont want another place where hamburgers eat people and ./ love microsoft if i still cant get a date.

two days ago? (1)

riqnevala (624343) | more than 11 years ago | (#5733797)

If you're skeptical of the multiverse, go read our discussion of a similar article from two days ago.

Two days ago? Timetraveling two whole days is always so painful, mixing my knowledge of both timelines will cause headache and makes my butt itch.

10^10^1.42? (0)

Anonymous Coward | more than 11 years ago | (#5733798)

Can anyone translate this to a human readable number?

(or is is that huge?)

Re:10^10^1.42? (4, Funny)

Peter Cooper (660482) | more than 11 years ago | (#5733882)

Just do it yourself using a calculator.

10 ^ 1.42 = 26.302679918953819172897987967726
10 ^ 26.302679918953819172897987967726 = 200761262891390934801701916.81189 metres, or to make it a lot easier to read, 200,761,262,891,390,934,801,701.91681189 Canadian kilometres, or in American dollars, about $2.

This doesn't make sense (5, Insightful)

Eanmig (611171) | more than 11 years ago | (#5733801)

If there are infinitely many universes and in each one I do something different and play out every possibility. Then one of the other me's will build a means to cross this space and enter mine. I could assume that I am in one of the universes where my double did not go. But why hasn't any other doubles been visiting us and telling us this? Is anyone else getting a headache?

So that means... (0, Offtopic)

buyo-kun (664999) | more than 11 years ago | (#5733804)

Microsoft: good
/.: not slash doting
Bush: Not stupid
Al Gore: Not a robot
Canada: A war like nation
Me: superman

Scientific Omnirican (5, Interesting)

Bryan Ischo (893) | more than 11 years ago | (#5733807)

Has anyone else noticed that Scientific American has suffered some serious Omni-fication in the past couple of years?

I let my subscription lapse a couple of years ago and when I got around to re-subscribing last year I found quite a few unpleasant surprises.

The last page of the old rag was always the Connections column, which was really interesting and entertaining. It's gone.

Gone also are all of the even vaguely scientific articles. There seemed to be a slant towards ridiculous stories on the edge of pseudo-science, much like in Omni magazine (is that in print anymore?). And every issue featured a sensationalist story centered around the threat of terrorism - stories about dirty bombs, biological weapons, new wiretapping technology, etc. It felt like they were desperately trying to attract readers by featuring stories with the same kind of scare tactics that the 11:00 news (which I haven't watched voluntarily in many years) resorts to.

Needless to say, I've let my subscription lapse again. Too bad, I used to really like that mag.

Re:Scientific Omnirican (1)

UncleFluffy (164860) | more than 11 years ago | (#5733850)

Got to agree with you. It really seems heavily dumbed-down and flashed-up compared to how it used to be. This will be the last subscription I take out as well.

Re:Scientific Omnirican (1)

crumbz (41803) | more than 11 years ago | (#5733866)

Wierd. I was going to post something similar. My sub ran out about 6 months ago and now when I skim it at Barnes and Nobel, I usually set it down after about a minute. The technical and medical articles are still good, but the cover and the filler copy tends to be a little too flashy for my taste. Maybe I am getting old....

Probabilities and reality (5, Insightful)

wackybrit (321117) | more than 11 years ago | (#5733810)

The article asserts: In infinite space, even the most unlikely events must take place somewhere.

So there is a place where everyone on Slashdot is getting laid! Quick, let's fire up the old improbability drive and head out there and join them!

Seriously though, this is no major jump in thinking, and is rather flawed when you stick to the basics. Just because something may be infinite in size does not necessarily mean there are an infinite number of events taking place within that space. There is no such thing as a probability of exactly 1 or exactly 0. That's why we have probability theory in the first place.

Re:Probabilities and reality (1)

xYoni69x (652510) | more than 11 years ago | (#5733860)

Quick, let's fire up the old improbability drive and head out there and join them! Actually, we won't get there. The Heart of Gold, powered by the Infinite Improbability Drive, passes through every point in the universe simultaneously. It doesn't travel to parallel universes. Although, I have to admit, that sounds extremely improbable.

Re:Probabilities and reality (4, Funny)

mark-t (151149) | more than 11 years ago | (#5733905)

There is no such thing as a probability of exactly 1 or exactly 0.

This is a self-contradicting assertion, for if there were no such thing, then that means that the probability of that assertion being false is 0, which would make the statement false.

Logically, probabilities of 1 and 0 exist, somewhere, only they may exist outside our current ability to perceive them.

If I were to take a guess at something having a probability of zero, I'd say it would be something like a statement that was both 100% true and 100% false.

My brain hurts. I'm going to bed.

Yeah, But you wouldn't like my twin (1)

IronTek (153138) | more than 11 years ago | (#5733812)

He's a gotese.cx, first posting troll.

Another me (3, Funny)

Mr Thundercleze (665529) | more than 11 years ago | (#5733814)

Could the universe handle 2 of me? This world can barely handle me. Just ask any Best Buy employee within 200 miles of my house.

Thundercleze: I want to buy a computer, but I have no idea about these computer things

BB Employee: Well, you're going to need lots of RAM. I can recomend this model to you

Thundercleze: Does that have SD or DDR ram?

BB Employee: What? but I thought...

Thundercleze: Answer the question

BB Employee: I don't know

Thundercleze: McDonalds fired you and your brothers the manager here isn't he?

BB employee: I feel so ashamed

Re:Another me (1, Funny)

Anonymous Coward | more than 11 years ago | (#5733895)

wow, that was one of the poorest attempts of comedy I've seen on slashdot. you should be ashamed of yourself.

Asuumptions..assumptions and assumptions! (5, Interesting)

tanveer1979 (530624) | more than 11 years ago | (#5733823)

The estimate is derived from elementary probability and does not even assume speculative modern physics, merely that space is infinite (or at least sufficiently large) in size and almost uniformly filled with matter, as observations indicate.

  • Scientists debate on wether universe is finite or infinite
  • There is debate on uniformity of matter also, mostly it is thought that matter is distributed uniformaly over observable space
So the debate lives on! And i guess calling these as parallel universe is a misnomer, this is the same universe, not in another dimension(like we have the in the movie "The One")

And, in one of these universes, (1)

callipygian-showsyst (631222) | more than 11 years ago | (#5733826)

...there's a SLASHDOT where everyone LOVES Microsoft and hates Linux!

Re:And, in one of these universes, (4, Funny)

mz001b (122709) | more than 11 years ago | (#5733840)

...there's a SLASHDOT where everyone LOVES Microsoft and hates Linux!

yeah, but that site is called ccolonbackslash.com

Re:And, in one of these universes, (3, Funny)

MrP- (45616) | more than 11 years ago | (#5733878)

And in this strange land it is known as Dotslash, and CaptnBurrito never makes spelling mistakes. There are never any dupes, IndianNeal is thin, JonDogz is loved by all. There are no trolls, everyone tries to achieve low karma.

I wish I lived in that universe =(

Re:And, in one of these universes, (1)

rritterson (588983) | more than 11 years ago | (#5733898)

and in another universe Microsoft started as an OSS company and is now making the leading Linux distro.

This is riduculous (2, Interesting)

sneakybilly (537969) | more than 11 years ago | (#5733828)

First they say that they have found the end of the universe and that one day it may pull back on itself and implode (rubber band effect) Then they say the universe actually folds around in an endless loop. Then they say there are parallel universes. Just wait another couple of years someone will disprove this. If there are more than one universe does that mean we are a multiverse. On another note god help us if there are more than one microsoft in this multiverse.

If thsi is true... (1)

Sexy Commando (612371) | more than 11 years ago | (#5733829)

Which OS do people over there use?

If my twin is reading this... (4, Funny)

jeblucas (560748) | more than 11 years ago | (#5733830)

If my twin is reading this, but reading it when he's younger (could happen, article says "There are infinitely many other inhabited planets, including not just one but infinitely many that have people with the same appearance, name and memories as you, who play out every possible permutation of your life choices;" then for crying out loud, make sure you get more than some over-the-sweater action from Amy L. back in what-was-my-1991. She'll go for it.

Acceptable theories (4, Insightful)

baywulf (214371) | more than 11 years ago | (#5733831)

How come theories such as parallel universes, multiple dimesions, strings, etc in Physics are considered acceptable yet when someone suggests the possibility of extraterrestrials visiting the earth they are considered lunatics? We are willing to handwave aways so many instances of groups of people observing UFOs as weather balloons, swamp gas, ball lightnings or mass hallucinations. To me those physics theories seem more bizzare and unlikely than the possibility that with a zillion starsystems that there be many other beings far more advanced than us.

Maybe then (1)

buyo-kun (664999) | more than 11 years ago | (#5733835)

There is a planet in this solar system, in some universe. Thats like Vulcan!

We will know that we have found it (5, Funny)

cyber_rigger (527103) | more than 11 years ago | (#5733837)


when we find a humongous ball of mismatched socks that have traveled through the 4th dimension.

The most unlikely events must take place somewhere (2, Funny)

Danga (307709) | more than 11 years ago | (#5733839)

"In infinite space, even the most unlikely events must take place somewhere."

So somewhere out there I am rich, dating Britany Spears, and finally have an infinite supply of beer! Yeah!!!

Networking (5, Funny)

xYoni69x (652510) | more than 11 years ago | (#5733842)

We have to hurry up with the switch to IPv6. IPv4 is just not enough for two universes.

Biverse? (1)

fdiaz5583 (531839) | more than 11 years ago | (#5733844)

Shouldn't it be called a "biverse" since there's two now?

David Deutsch's theory (5, Interesting)

abhikhurana (325468) | more than 11 years ago | (#5733845)

Long time back another scientist, David Deutsch[http://www.qubit.org/people/david/David.ht ml] proposed a similar therory to explain Young's double slit experiment. This theory indicates that there exists a universe for every possibility. Every time an event could have more than one outcome there is a universe created for each outcome. In our universe a meteorite caused the extinction of the dinosaurs. A parallel universe exists in which the meteorite missed Earth, and possibly several others in which the meteorite struck another planet or was not formed at all. In a parallel universe Hitler did not invade Russia and consequently won the Second World War. In yet another, Elvis is still alive. This theory explains the double slit experiment by saying that quantum phenomena are the result of interactions across universes. When a single electron passes through a slit it interacts with the electron from a parallel universe, in which the electron went through the other slit, producing the pattern. This explains the pattern produced by passing one electron through the slit at a time. This theory applies to time travel in how it allows for reverse time travel to accommodate paradoxes. When one travels back in time, one travels back into a universe created for the possibility of time travel. This universe runs in parallel with the universe from which the traveller came. Everything will be identical to the past in the original universe, and alterations will have the same effect as they would have if they had occurred in the original universe. However, because it is a parallel universe, and not the universe that created the traveller, the traveller will not be affected by any changes he makes. He could kill himself, his father, his grandfather or whoever, and while he is erased from the parallel universe, he continues to exist because he is not from this new universe. Thus no paradox is created, and only the destruction of himself by suicide or personal attack, or his time machine, could see him affected by the outcomes of his actions, and even then no paradox is created. This provides a method by which paradoxes can be avoided and reverse time travel allowed. This theory has parallels such as the alternative histories approach. This theory allows reverse time travel without consequences by having the time traveller travel back onto a different timeline and thus is insulated from any actions which should in theory affect him or cause a paradox. The full text of this theory can be found at http://arxiv.org/abs/quant-ph/0104033

you don't die (1)

stiefvater (101844) | more than 11 years ago | (#5733849)

fyi -

parallel universes predict immortality. search for quantum immortality [google.com] or read my own take, here [qarl.com] .

K.

Key insight (3, Informative)

Black Parrot (19622) | more than 11 years ago | (#5733855)


IMO the most important part of the article, though less headline-catching, is the claim that recent results indicate that our universe may be infinite in both size and mass.

I like that result, though I find it very surprising.

At any rate, it is this fact (or claim) that allows the author to conclude that a "level I" parallel universe exists somewhere. Indeed, an infinite number must exist, if the universe is in fact infinite.

He also offers levels II, III, and IV, which arise from more exotic causes. In Sunday's /. discussion I suggested that a level V should also be added [slashdot.org] , at least if you buy his argument for the existence of the set of level IV universes.

how is this new? (0)

Anonymous Coward | more than 11 years ago | (#5733863)

this is the logical continuation of the
premise that the universe is infinite.
this idea has been around for at least
20 years, and i Know i'm not the first
person to have thought this way ;) ..

so once again, science catches up to
common sense

Question... (1)

ath0mic (519762) | more than 11 years ago | (#5733867)

There are infinitely many other inhabited planets, including not just one but infinitely many that have people with the same appearance, name and memories as you, who play out every possible permutation of your life choices.

So why wouldn't at least one of these people (well, I guess an infinite number of people) be able to travel into another universe? (Or all possible universes?... including ours).
Really, I know nothing about the subject... just a question that came to mind.

An infinite number of monkeys, at an infinite number of typewriters, would instantaneous produce the complete works of Shakespeare... along with every other piece of literature that has been written. (Not to mention, everything that has yet to be written).

The important question is: (0)

mrclmn (590405) | more than 11 years ago | (#5733879)

Is that twin EVIL?

A "Simple" Explanation (5, Informative)

Ignorant Aardvark (632408) | more than 11 years ago | (#5733884)

It goes like this. There are approximately 10^120 particle positions (the smallest quantized unit of space) in the observable universe (and there are 10^90 particles in the universe). Assuming each "particle position" is a boolean (either a particle is there or it's not), there are 2^10^120 possible observable universes (a sphere of space 40 billion light-years across). Now, we have cosmological evidence that the entire universe goes on forever ... so using simple math we can derive a much larger sphere encompassing so many universes that, at some point, all possible particle position combinations are exhausted and there MUST be another 40-billion-light-years-across universe that is exactly the same as the one we currently inhabit. The distance they've calculated is around 10^42 meters. So, that far away, there should be an exact replicate of you, reading this exact post at this exact same instance, and modding it up as Informative :-)

Re:A "Simple" Explanation (1)

Timmeh (555676) | more than 11 years ago | (#5733903)

I modded it interesting, does that make me one of the evil twins?

I remember reading... (1)

baximus (552800) | more than 11 years ago | (#5733885)

once about a theory that these universes weren't actually distant in three dimensions as the articles suggests. The theory was that in 3 dimensions, these universes were in precisely the same places as the one we're in - they differed only in other dimensions (based on the theory that we experience 4 dimensions - X, Y, Z and time - but that there are many others that we cannot experience yet, and "travelling" in these dimensions would reveal these other universes).

Another theory speculated that, at any instant in time, an infinite number of parallel universes were simultaneously created, and began tangenting off in their own timelines - these corresponded to the infinite number of possible actions that could occur in each instant. The very next instant, each of these would experience a similar spawning of universes and tangents of possibilities.
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