A 40-year-old puzzle of superstring theory solved by supercomputer

The newly obtained solution to the space-time dimensionality puzzle strongly supports the validity of the theory.

well they got one scenario 10^500 - 1 to go.

It's about as absurd as saying it was purple.

To the editor: "the universe originated in an explosion from an invisibly tiny point."
Can we stop making such false statements about the big bang please ? It's about as absurd as saying it was purple.

However, actual calculation has been intractable because the interaction between strings is strong, so all investigation thus far has been restricted to discussing various models or scenarios.

To the editor: "the universe originated in an explosion from an invisibly tiny point."
Can we stop making such false statements about the big bang please ? It's about as absurd as saying it was purple.

that actually EXACTLY what all the major BB theorists continue to say publicly, to this day.

I was just watching a brand new documentary on Nat Geo 2 days ago, and they used that same language again.

does anything in string theory make sense of why the original 10 dimensions were there to become our 3 1 universe or why there is only one time dimension--both before and after the expansion?

IMO this result can be demonstrated in much simpler way in AWT (dense aether theory)...

The whole trick is based on the fact, the density fluctuations of gas are forming n-spheres in hyperspace and the energy density depends on the volume/surface ratio of these hyperspheres. Surprisingly, for 3D hyperspheres this ratio is highest one, the radius of both circle (2D sphere), both 4D hypersphere is smaller with respect to its surface, than at the case of 3D sphere.

The surface to volume ratio of hyperspheres is in particular n/R, where n is the number of dimensions and R is the radius, and it is obvious that the ratio becomes larger as you pass to higher-dimensional embedding spaces.

that actually EXACTLY what all the major BB theorists continue to say publicly, to this day.

Callippo = rawa1, pick one name and stick with it. Geesh.

One would be just as naive to believe it all stops at either of those boundaries, as we were to believe the earth is flat just cause we could not see past the horizon

Wouldn't you need at least two temporal dimensions? How can you have time moving in one direction and decoupled from the other? If you did have 1 temporal dimension, wouldn't you need to have another else you would fall into that information paradox?

EXPANSION OF SPACE TIME, not EXPLOSION IN SPACE

So originally the energy density of the universe was very high.

So originally the energy density of the universe was very high.

There was no "origin". At the water surface all ripples collapse at distance. Does it mean, the water surface is more dense there?
http://people.rit...4565.jpg

Ok at the beginning of the expansion cycle. All energy, no matter, no water, too hot.

Ok at the beginning of the expansion cycle. All energy, no matter, no water, too hot.

Which expansion do you mean? In AWT the matter and energy ratio is always balanced at 1:1 value at the sufficient distance.

Time exists for one reason: to separate cause from effect

@Seeker2, without time, cause and effect are one.

Does this make the whole experience fractal or ergodic?

why does the header say 10 dimensions and the article only says 9

Calippo and Rawa1 are the same person?

You are both correct and make valid points. However, we people that understand these things are not really the intended audience of these shows. They dumb it down to attract NEW laypersons, usually children that understand what explosions are, but not "inflation," and who will eventually figure this out if they really care. All I'm saying is, I understand why the writers do this. I might not if I were in their shoes, but I understand. I do similar things when explaining technical IT/networking issues to my customers. Not all viewers are aspiring physicists.

but until we see string theory generate hypotheses testable through experimentation, there's no "strong proof."

string theory has no experimental basis, it is a pure mathematical model

... Eoprime, George_Rodart, bewertow, jsdarkdestruction, Osiris1, Eglerion, orac, vega12, 350, ....

quantum vacuum is 3D, 4D space-time is merely a mathematical model which describe material change in 3D quantum vacuum where time is a numerical order (sequence) of material change

Because mainstream physicists are playing role of priests of contemporary society, or like shamans guarding their empirical secrets. From the same reason the Holy Church was so upset, when someone tried to explain God in natural way - it was more dangerous for it, than the simple negativism.

all main aspects of which can be modelled with common water surface.

So your fear of mainstream physicists is basically the same as that of the Holy Church.

basically AWT is a Genesis 1

So your fear of mainstream physicists is basically the same as that of the Holy Church.

Not fear, but AWT description of that community.

It rather explains, what the Big Bang theory and Genesis have in common

AWT describes a community?

I thought you were a steady state man.

AWT describes a community?

The sectarian community doesn't differ conceptually from dense stars filled with boson condensate.

AWT just says, from sufficiently distant perspective the steady state and big bang models will become indistinguishable each other.

So AWT theory would seem to be much more effective describing the sectarian community than any possible physical application.

Total ignorance should be a sufficiently distant perspective

The fuziness of AWT is advantage for description of fuzzy relationships inside of human society, where most of quantities are difficult to quantify, if not measure.

As Asimov one noted, every sufficiently advanced technology (theory) is indistinguishable from miracle (religion)

In physics dimension means number of motion freedom degree, i.e. the number of directions, in which the energy can propagate in independent way.

Right. Keep it fuzzy so it can't be tested. That way nobody can prove it's wrong

So up and down would be 2 directions so 2 dimensions?

From Occam's razor perspective it's always better to give fuzzy but unique prediction

In noncommutative (nonabelian) group theories these directions are never equivalent (they introduce Berry phase during their reversal in accordance to the proverb "you never cross the same river twice"). Which means, they're handled as a separate dimensions (some versions of string theory handle two dimensional time in such a way). In AWT all dimensions are noncommutative: if you travel to same place, you'll always appear at somewhat different universe, then during travel in the opposite direction: no action is completely reversible here.

From Occam's razor perspective it's always better to give fuzzy but unique prediction

I wouldn't want a fuzzy prediction no matter how unique it was.

in general you cannot have universal and exact predictions at the same moment. It's generalized form of uncertainty principle of QM.

in general you cannot have universal and exact predictions at the same moment. It's generalized form of uncertainty principle of QM. [q/]

True. You can generalize the uncertainty principle until you get total nonsense if that's what you want. Opportunities unlimited.[q/]

You can also be so critical as to just be a non contributing side stepping the point spam, which is an indication of your ability!

all this talk bout string theory... It is my understanding at this date that they are vibrating. Does anybody know if they are all vibrating at a different frequency? If not, how many different frequencies (flavours) are there? And at what freq are they vibrating?