Why are there exactly 11 dimensions?

  • Thread starter Thread starter stamba
  • Start date Start date
  • Tags Tags
    Dimensions
Click For Summary
The discussion centers on the existence of 11 dimensions, primarily linked to M-theory, which unifies five previous string theories. Participants highlight that the additional dimensions provide mathematical freedom necessary for string vibrations, with compactified dimensions shaping the properties of particles. The conversation also touches on the historical context of extra dimensions, originating from Kaluza-Klein theory, and the implications of these dimensions on fundamental forces. Some contributors express skepticism about the validity of these theories, emphasizing the need for empirical evidence to support claims of dimensions beyond the familiar four. Ultimately, the consensus is that while 11 dimensions are currently theorized, further research is required to fully understand their nature and necessity.
  • #61
DaveC426913 said:
It is a hypothesis. No one is suggesting there is evidence that there is more than one universe. The MWI is another such hypothesis.

But is it reasonable to accept that every sub atomic interaction divides reality such that every possibility did occur? I'd suggest that all our evidence suggests that once a decision is made, it's final.

It's just that in the macro world, the decision is made Very quickly. Decoherence seems to me to be exponentialy related to the plank length, and yet there is an almost quantum nature to the border where the decisions get made - in effect - instantly.

And yet the uncertainty remains in the macro world because firstly there are too many variables for us to be capable of making sense of their interactions, and secondly because at some fundamental level our consciousness lives in the place where quantum uncertainty is normal.

I'm not suggesting
anything like indecision etc. I'm proposing that human will is non deterministic. And I'm certainly not suggesting that consciousness and quantum uncertainty are directly connected. But it is a fact that we are a long way from starting to understand either.

I feel sorry for all the people that have no intellectual curiosity because they believe people far more intelligent than themselves are close to understanding everything. It's cruel that science nowadays is constructed to give that false impression, when the reality would stir and exite so many more to hunger to understand the great mysteries that stand before us all.

If science was more honest about the fact that most of it's current "facts" will be at least partially modified in a decade or two, the crazies that reject reason altogether would have the rug taken from under their feet. And maybe more would hunger for truth.
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
3K
Replies
20
Views
2K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 13 ·
Replies
13
Views
4K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 30 ·
2
Replies
30
Views
7K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
6K
  • · Replies 2 ·
Replies
2
Views
2K