I am no scientist, but logic is logic.   There are theorems of the universe that are given. One is that we live in a closed system. Nothing is either created or destroyed – things change form – that is all. Present theory suggests the universe is expanding. And the expansion is accelerating. What can we deduce?

The current theory of space suggests that what appears to be nothing – the space between the visible celestial bodies – is actually something called “Dark Energy.”  The explanation given for dark energy denies a closed system.  From NASA Science:

One explanation for dark energy is that it is a property of space. Albert Einstein was the first person to realize that empty space is not nothing. Space has amazing properties, many of which are just beginning to be understood. The first property that Einstein discovered is that it is possible for more space to come into existence. Then one version of Einstein’s gravity theory, the version that contains a cosmological constant, makes a second prediction: “empty space” can possess its own energy. Because this energy is a property of space itself, it would not be diluted as space expands. As more space comes into existence, more of this energy-of-space would appear. As a result, this form of energy would cause the Universe to expand faster and faster.

The other tag given to to the unseen space that seems to be expanding is “Dark Matter“.  Again NASA postulates:

We are much more certain what dark matter is not than we are what it is. First, it is dark, meaning that it is not in the form of stars and planets that we see. Observations show that there is far too little visible matter in the Universe to make up the 25% required by the observations. Second, it is not in the form of dark clouds of normal matter, matter made up of particles called baryons. We know this because we would be able to detect baryonic clouds by their absorption of radiation passing through them. Third, dark matter is not antimatter, because we do not see the unique gamma rays that are produced when antimatter annihilates with matter. Finally, we can rule out large galaxy-sized black holes on the basis of how many gravitational lenses we see. High concentrations of matter bend light passing near them from objects further away, but we do not see enough lensing events to suggest that such objects to make up the required 25% dark matter contribution.

Either way – Dark Energy or Dark Matter – the problem of a closed system remains.

If Dark Energy is the answer, and we know that energy does not just appear, then we have to believe that matter itself is transforming to add the Dark Energy necessary to expand the Universe.

Conversely, if Dark Matter is the answer, then we have to assume that energy is being transformed into matter.

Our world may literally be getting smaller.  The only other explanation is to discount the concept of a closed system.