Darkness, not light, is the starting point near a black hole. Just beyond the event horizon, matter does not vanish quietly; it stalls, spirals and collides in a tight ring called an accretion disk, where gas falling inward converts gravitational potential energy into heat with brutal efficiency.
The key insult to intuition is simple. Gravity there works like an energy refinery. Gas drawn inward accelerates to a significant fraction of light speed, and friction between neighboring streams, together with viscous shear, drives temperatures to extremes that force atoms to ionize and radiate in X rays and gamma rays that outshine entire galaxies.
The real spectacle comes from order imposed on that chaos. Strong magnetic fields thread the disk and the spinning black hole, and through magnetohydrodynamic processes they tap rotational energy and funnel plasma into relativistic jets that punch out along the poles, collimated so tightly that, if aimed at Earth, a tiny region can appear brighter than all the stars in its host galaxy.
So the paradox is only apparent. The interior stays hidden by the event horizon, but the last millimeter of free space outside, governed by general relativity and high-energy plasma physics, turns gravity’s pull into one of the most efficient power plants known.