one has to observe the universe. In order to describe reality. however each observer has a different perception, based upon the view of the individual.
Communication provides us with a link of information that can be shared between individuals up to the masses. The stars give light signals that transmit their location in time and in space. Computer systems transmit energy through the binary code, informing the various components with their reality. The computers reality is made to do the work of your imagination. Atoms, vibrate at different frequencies informing the universe on their location and energy. In the same way individual human being use vibrations to transfer their energy from one to the other. Like every atom, computer, and star, we all have different levels of energy. These differing levels of energy give differing views of the universe.
Computers are machines made by man. Man is a machine made by the universe. Both are used to for your imagination.