A kilometer long cosmic string weighs the same as the Earth. Cosmic strings are forbidden to have ends. Therefore they either form closed loops or extend across the entire span of the Universe. The thickness is only 1000 Planck lengths. They are theorized for encapsulating concentrated primordial field energy hence in a sense they can be classified as quanta of 2D space-time. However, if two loops of these cosmic strings are linked together, they naturally form 3D space-time quanta which are then describable by square of energy. Within each quanta can be found two 2 straightest orthogonal forces and two straightest space-time metrics. And because of their straightness they survive till the end of eternity.


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