Upon further research, I have found an academic source, the theory unlike my 2 scenarios, it's a mix, quote: "The complete Schwarzschild geometry consists of a

Upon further research, I have found an academic source, the theory unlike my 2 scenarios, it's a mix, quote: "The complete Schwarzschild geometry consists of a black hole, a white hole, and two Universes connected at their horizons by a wormhole." https://jila.colorado.edu/~ajsh/bh/schww.html https://jila.colorado.edu/~ajsh/bh/schww.html