Black holes could not be controlled directly. As a singularity and with the exceedingly profound mass that formed its event horizon, they were completely isolated from the outside world to the point where even light could not escape from it.
Time moved slower the closer one approached a black hole that the black hole's gravitational pull was unaffected even when the greatest champions were pushed into its event horizon. Instead, the singularity would remain as it was inside the event horizon, and in that instant the individual resisted the pull of the black hole, thousands or even infinite years would have passed.
The universe could well have died before the individual within the black hole.
Such isolation and temporal distortion as well as the special attribute of singularities that followed no rules made black holes uncontrollable but only indirectly affected. Even with his might, Joshua was no exception.
