Alien X was originally 3D before this CRT due to "Our plane of Existence" being regarded as 3D rather than 4D spacetime continuum, in the context of the verse, baseline plane of reality/Existence is 4D as was stated by paradox. With them being stated to be Extra-Dimensional by MoA in their QnA, even their very DNA having passive HD Manipulation, and to be clear, it can't be a hax or range as celestial sapiens don't have L1-C range physically but with their "Powers/EE/reality wrapping", their DNA being used as the source of AP is justifiable but range would be more of chromastone thing who don't have L1-C physically either and hax such as EE, time manp, etc would require celestial sapiens to reach an agreement and stuff unless their very Existence is capable of affecting higher Dimensions not as hax but mere existing, that would imply them being higher Dimensional greatly as well and they're even stated to be beyond comprehension by non other than azmuth.