A black hole is a region in space where gravity is extremely strong, to the point where nothing, not even light, can escape its gravitational pull. The nature of a black hole is such that it does not have an "opposite side" in a conventional sense.
A black hole is formed when a massive star collapses under its own gravity, resulting in a singularity—a point of infinite density—at its core, surrounded by an event horizon. The event horizon is the boundary beyond which nothing can escape the gravitational pull of the black hole.
From an external observer's perspective, everything that crosses the event horizon is effectively hidden from view, leading to the concept of a "point of no return." Once an object, including light, passes the event horizon, it is trapped within the black hole.
Inside the event horizon, the geometry of space-time becomes highly curved, leading to a gravitational singularity at the center. Our current understanding of physics breaks down at this point, and our knowledge is limited.
Therefore, discussing an "opposite side" of a black hole is not meaningful in the conventional sense because the singularity and the event horizon define the extent of a black hole's influence in space.