Rex continued to listen to the lecture given by the researcher. In essence, even though these gates have appeared only decades before, being a recent phenomenon, there were three theories that was widely accepted for their appearance. The first was
Spatial Rift Theory - The theory was that gates were the results of natural distortions which appeared in certain locations where spatial energy was thick due to the existence of Astralis Shards or also known as space stones which allows breaches between another location and the one where the gates were opened. These rifts stabilize itself into portals which were known as gates.