Can someone give me a lycée dropout level explanation what they are writing here? I am gathering that galaxies are spaced in tetrahedral formation, and some f

Can someone give me a lycée dropout level explanation what they are writing here? I am gathering that galaxies are spaced in tetrahedral formation, and some fashion there are "mirrors" i.e, tetrahedral formation but with opposite side-lengths, but now discovered that is not so? I am confuserated.