Theoretical physicists speculate that the existence of a fifth dimension could solve many open questions in physics.
Is there any difference between antimatter, dark matter, dark energy, and degenerate matter?
How true is the 5th dimension theory? - Quora
Searching for Dark Matter Through the Fifth Dimension – New Theoretical Physics Discovery to Help Unravel the Mysteries of Dark Matter
Scientists rule out a popular alternative theory to dark matter - Big Think
The 5 Biggest Questions About the Universe (and How We're Trying To Answer Them)
How primordial black holes might explain dark matter
There's a New Theory About Where Dark Matter Is Hiding
WTF? The Universe's expansion rate isn't accelerating? - Big Think
A New Theory of Consciousness: The Mind Exists as a Field Connected to the Brain - Science and Nonduality (SAND)
There's a New Theory About Where Dark Matter Is Hiding
Dark energy: The eerie force accelerating the expansion of the universe