# Dark Matter’s Two Types of Interactions

Quantum-geometry dynamics (QGD) is a theory derived from a minimal axiom set necessary to describe dynamics systems in a fundamentally discrete universe.

According to QGD, all matter in the universe is compose of $preon{{s}^{\left( + \right)}}$ which is the fundamental unit of matter. $Preon{{s}^{\left( + \right)}}$, being fundamental, do not decay or transmute into other particles but they combine to form all that we know from photons and neutrinos, to more massive and complex structures.

Most $preon{{s}^{\left( + \right)}}$ are still free and permeate space and interact in only two ways: Gravitationally and through the electromagnetic effect.

We have explained in an earlier article that in its initial state the universe only contained free $preon{{s}^{\left( + \right)}}$ that distributed homogeneously throughout the entire space. The cosmic microwave background was formed when $preon{{s}^{\left( + \right)}}$ combined to form photons. Thus QGD explains the isotropy of the CMBR with few physical assumptions; all of them testable using present technology. $Preon{{s}^{\left( + \right)}}$ account for all other large scale effects attributed to dark matter (gravitational lensing for example) but there are local effects at our scale that we observe or make use of every day.

QGD explains that magnetic fields result from the interaction of charged particles or structures and the free $preon{{s}^{\left( + \right)}}$ of their neighbouring regions. And changes in momentum induced by magnetic fields are simply the momentums imparted by their polarized $preon{{s}^{\left( + \right)}}$ .

If QGD is correct, there is nothing mysterious or unusual about dark matter. We encounter it every day but just don’t call it that.