5. The single fundamental interaction of Nature is an energy transfer.

5. The single fundamental interaction of Nature is an energy transfer.

Energy transfer can be understood as the single natural interaction in our observable Universe. When a part of the Universe (a galaxy or an atom) is lacking on energy, the additional energy will be “borrowed” from the environment. When such a part of the Universe has a surplus on energy at its disposal, the energy will be send to the environment.

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