What are the consequences of 'M theory' on dark matter?

Question

There isn't enough matter to generate the gravity required for the formation of the universe. So dark matter was invented. ( none found so far. ) M theory says that gravity doesn't come from our universe. Instead it leaks in from a parallel universe. Does that mean dark matter is no longer required, or has M theory helped prove its existence?

Answer 1

Neither,

Theory is never proof so that's not it. Gravity is a weak force. M is an explanation why it is weak. Multidimensional theory is not about gravity, it's just part of it.

Einstein tried to unify the fields, he failed. Many new theories came and went.... I'm not sure we 'got it' now. It is still a very unstable work in progress.

Answer 2

The phenomenological implications of the eleven dimensional limit of M-theory (strongly coupled E8× E8) are investigated. In particular we calculate the supersymmetric particle spectrum subject to constraints of correct electroweak symmetry breaking and the requirement that the lightest supersymmetric particle provides the dark matter of the universe. We also calculate direct detection event rates of the lightest neutralino relevant for non-baryonic dark matter experiments. The modulation effect, due to Earth's annual motion is also calculated.


There is a fundamental difference between religious mythology and quantum cosmology. Mythology makes no pretense of being scientific. It fails the test of being falsifiable. There is no experiment that can rigorously exclude the possibility of miracles, angels, and the like which are not (by definition) reproducible. Quantum cosmology, however, may eventually be verified or falsified. The COBE satellite detected tiny ripples in the otherwise uniform microwave background radiation. This is significant because these ripples most likely correspond to quantum fluctuations that existed at the instant of the Big Bang. We are, in fact, children of these ripples. The quantum fluctuations at the beginning of time gradually grew in size over billions of years becoming the galaxies, stars, and planets that we see today.

Other tests of this scenario may come from dark matter. Numerous observations have verified the existence of a mysterious, invisible form of matter that makes up perhaps 90% of the mass of the universe. For example, our own galaxy cluster -- the Local Group -- would have disintegrated billions of years ago if it weren’t held together by enormous quantities of unseen matter. One of the leading candidates for dark matter is a new form of matter called sparticles (short for “super particles”), which are some of the lowest vibrations of the superstring.

Answer 3

Read Roger Penrose, The Road to Reality

Answers you get here will are as liekly to be as reliable as the theory that the moon is made of cheese