Is string theory right?
- TomLv 71 month ago
I prefer M theory String theory with another dimension that form flat "sheets" or Membranes (Hence M) called "branes" These branes from independent universes that "hang" in front and behind each other like sheets on multiple wash lines---forming a series of Parallel universes.
they also "undulate" like sheet in a light breeze. It is said a "big bang event, like the one that formed out universe/brane takes place, should one undulating brane, touch another.
Also note these branes are actually THREE dimensional, in a FOUR dimensional space rather than flat, 2 D sheets,in a 3 D space but we cannot Visualize that in our MINDS, so we use 2D sheets/Branes for illustrative purposes---we can wrap our minds around generally what is going on. (only another dimension up) ------String has another Dimension up too, BTW.
Yes, these are THEORIES----We already know what happens in "The Standard Model"-----BUT we do not know WHY the Standard Model behaves as it does.----These THEORIES are attempts to explain that----The ones that explain the MOST are the preferred Theories.------But NONE, so far explains it ALL.
- 1 month ago
Not that anyone is ever going to be able demonstrate.
It is a classic case of a happy fantasy in science. Mathematical doodling that keeps people employed on the basis that if they fabricate enough stuff they might one day be able to make it match some high level observation, either by chance or by design.
Don't hold your breath.
- Adullah MLv 71 month ago
You have to know what is wrong first ,then can propose what is right. Who would do that.
- jeffdanielkLv 41 month ago
String theory makes no testable predictions so there is no way to know if the theory is right or wrong. This is the biggest drawback of string theory. If it is not falsifiable, it is not science.
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- nebLv 71 month ago
We don’t know since we don’t have the technology to properly test the theory, e.g., we can’t probe the extra dimensions of string and M theory.
We do know that string theory is heavily dependent on the notion of supersymmetry. Supersymmetry requires that every particle have a ‘partner’ particle that differs in spin. So, every boson has a partner fermion, and every fermion has a partner boson.
Unfortunately for string/M theory, the LHC has failed to find any evidence for partner particles. Zilch, zip, nada. While proponents can hope that these partner particles are simply too massive to be created at the LHC, the theory becomes less and less attractive the more massive the particles are ....if they even exist.
- CarolOklaLv 71 month ago
No one knows, including the theoretical physicists and mathematicians.
- Ronald 7Lv 71 month ago
It all depends who is holding the StringsSource(s): AND IT AIN'T MUFFIN THE MULE
- Anonymous1 month ago
There are about 10^50 still-viable string theories.
- ZirpLv 71 month ago
maybe. Do you have a competing theory that fits the observations better?
- 1 month ago
Not for sure yet... which is why it's a theory.
And, there different 'flavors' of the theory as well - which might all be true, or may not.