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Nikola Mitic
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Is there a possibility that there are infinite dimensions in our universe.M theory predicts that there are 11 dimensions,but why not more?
tom.stoer said:What I want to say is that I am pretty sure that we haven't fully understood the concept of dimensionality at all. I think there is an underlying mathematical structure which "breaks" in some sense and leaves us with 4 "parameters" which look like dimensions. But I don't think that this bottom-up approach using the ordinary language of dimensions will be successful; I think that the whole concept of dimensions and manifolds is emergent and may apply only in certain limits.
arivero said:An additional problem is that string theoretists have "decaffeinated" the whole concept because they need orbifolds and very exotic structures. Before this apotheosis, or perhaps ragnarok, of the string, it was very well understood that 11=7+4. This is because in 11 dimensions they are two natural bosonic objects, one with two indexes, the graviton, and another one with three indexes (the putative source of the membrane solutions). Due to the three indexes of this field, the compactifications of 11D space always divide in 7+4, the only doubt being which of the two terms is perceived. Mathematically, a space with D=7 was as likely as an space with D=4, from the point of view of compactified supergravity. Only by incorporating cosmology or thermodinamics, the D=4 solution was singled out.
atyy said:I had to look it up!
Ragnarök, n. The destruction or ‘twilight’ of the gods; spec. the last battle of this world, in which gods and men will be defeated by monsters and the sun will grow dark.
Well, isn't string theory supposed to predict our universe is unstable?
In M theory, infinite dimensions refer to the idea that there may be more than the four dimensions (three spatial dimensions and one time dimension) that we are familiar with in our daily lives. M theory suggests that there could be up to 11 dimensions in total, with the extra dimensions being hidden from our perception.
M theory is a proposed theory of everything that combines aspects of both string theory and quantum mechanics. It differs from other theories in that it attempts to unify all the fundamental forces of nature, including gravity, into one cohesive framework. It also proposes the existence of extra dimensions, which is a unique feature not seen in other theories.
Currently, there is no direct evidence to support the existence of infinite dimensions. However, M theory has been able to make some predictions that align with observations from experiments, such as the existence of membranes and the behavior of black holes. Further research and experimentation is needed to provide more concrete evidence.
General relativity and quantum mechanics are two of the most successful theories in physics, but they seem to contradict each other in certain situations. M theory attempts to reconcile this contradiction by proposing that the fundamental building blocks of the universe are not particles, but rather strings. These strings vibrate at different frequencies, giving rise to the different particles and forces observed in nature.
As of now, M theory is still a theoretical framework and has not been conclusively tested or proven. However, scientists continue to work on developing experiments and observations that could potentially provide evidence for its existence. The ultimate goal is to find a way to test M theory and determine its validity, but more research and advancements in technology are needed for this to happen.