Bardeen-Petterson alignment in a 10 degrees tilted disc

Here we show a transverse density contour of a thin H/R= accretion disc (red) around a spinning black hole (white dot in the middle) in a general relativistic MHD simulation. The inner parts of the accretion disc align with the black hole, also called Bardeen-Petterson alignment. Later on in the movie the disc forms a low density highly turbulent inner disc coupled to a high density weakly turbulent outer disc. Could this inner disc be the precursor of a thick accretion disc? Furthermore, against the st