Several potential mechanisms could explain how the supermassive black hole in the galaxy at a redshift of 2.445 drives such a powerful neutral gas outflow. One possible mechanism is through the accretion of matter onto the black hole, leading to the formation of an accretion disk. The intense gravitational forces and energy released during this process can generate powerful winds that push neutral gas out of the galaxy. Another mechanism could involve the interaction between the black hole's jets and the surrounding gas, creating shockwaves that propel neutral gas outwards. Additionally, feedback processes, such as radiation pressure or energy from active galactic nuclei, could also contribute to driving the powerful neutral gas outflow observed in this galaxy.