The fragmentation of quantum foam into smaller bubbles leads to fragmentation of time arrows and violation of jet symmetry during RHIC/LHC collisions of heavy atom nuclei. The same fragmentation can be observed near rotating black holes (Kerr solution leads to multiple event horiozons) and polarization of CMB at 40 MPc+ scale. The symmetry violation during jet formation could be explained by omnidirectional space-time expansion during torus spinning - the inner part of ring always rotates faster, so it's dragged into axis direction.
Centaurus A, which are asymmetric in similar way, like jets emanated by quark-gluon plasma during collider experiments. The second jet should be formed by jet of supersymetric particles, fotinos in particular. The absorption of jet demonstrates, how easily the QG plasma can be feeded by matter under formation of strangelets or even black holes.
In this connection it may be significant, CMB cold spot is unpaired too (if the observable Universe is formed by black hole, we could see through polar jet into hyper-universe). The observed parity violation of galaxies and CMB Doppler anisotropy should be correlated to CMB cold spot direction, too. Because jets of black holes are exaggerated example of gravity brightening, we could observe CP symmetry violation by difference of polar temperatures and curvatures at the case of giant rotating stars, too. In this connection it's interesting too, even Earth globe has a pear shape, which deforms Earth ellipsoid by elevation of about two hundred meters at north pole. It's interesting, Christopher Columbus considered it in 17th century already, while promoting westward voyage to Cathay (China) or Zipangu (Japan).