How does M-Theory deal with space time?

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SUMMARY

M-Theory addresses spacetime by requiring a predefined spacetime framework, unlike General Relativity where spacetime emerges from the equations. It incorporates various string theories, which are dimensionally reduced versions of M-Theory. The low-energy limit of M-Theory, known as 11-dimensional supergravity, operates within an SO(10,1) type spacetime. Current understanding of M-Theory remains limited, with ongoing research needed to clarify its implications for spacetime.

PREREQUISITES
  • Understanding of M-Theory and its relation to string theory
  • Familiarity with 11-dimensional supergravity concepts
  • Knowledge of SO(10,1) spacetime structure
  • Basic principles of General Relativity (GR)
NEXT STEPS
  • Research the implications of M-Theory on spacetime geometry
  • Study the properties and applications of 11-dimensional supergravity
  • Explore the relationship between string theories and M-Theory
  • Investigate the mathematical framework of SO(10,1) spacetime
USEFUL FOR

The discussion is beneficial for theoretical physicists, cosmologists, and students of advanced physics interested in the foundations of M-Theory and its implications for spacetime.

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How does M-Theory deal with space time? One of my friends said something like it verifies it. Is anything known about it?
 
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I'm not sure a lot is known. The various string theories--which are M-theory dimensionally reduced in various ways--have to have a spacetime given to them, as opposed to the background falling out of the equations like how Minkowski spacetime is a solution of GR.

11d supergravity--the low energy limit of M-theory--has an SO(10,1) type spacetime. But who knows what's going on in M-theory.
 

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