Will the probe fall into the black hole?
A. Yes.
B. No.
From a safe distance, we watch a spherical, pressureless star collapse to a black hole.
Will we see the star collapse to a singularity?
A. Yes, the star will appear to collapse to a singularity.
B. No, the star will appear to freeze when at the horizon radius, and never collapse.
When the mass of a black hole increases, its horizon expands.
Does the horizon appear to engulf stuff that previously fell through the horizon?
A. Yes, stuff that previously fell into the black hole disappears.
B. No, stuff that previously fell into the black hole remains frozen at the horizon,
appearing to expand with the horizon.
If, as seen by an outside observer, a star appears never to collapse through its horizon,
does the star ever actually collapse?
A. Yes.
B. No.
If you fall into a supermassive black hole, will you be tidally torn apart at the horizon?
A. Yes.
B. No.
Is the singularity of a Schwarzschild (spherical) black hole a point?
A. Yes.
B. No.
Is Hawking radiation visible to an observer inside the horizon of a black hole?
A. Yes.
B. No.
The singularity of the ideal mathematical solution for a Reissner-Nordström black hole is gravitationally attractive (what does the river model for RN black holes say)?
A. Yes, the singularity is gravitationally attractive.
B. No, the singularity is gravitationally repulsive.
From the point of view of an observer outside the outer horizon of a white hole, is the white hole is gravitationally attractive?
A. Yes, the white hole is gravitationally attractive.
B. No, the white hole is gravitationally repulsive.
Would you vote in favor of making a baby Universe?
A. Yes.
B. No.
If society were presented with the one-time opportunity to make a baby Universe, the outcome would be all out war between competing powers.
A. Yes, war.
B. No, society would figure it out peacefully.
The “No Baby Universe” faction says that if a baby is made, it will expand out of the black hole, destroying our Universe. Are they right?
A. Yes, the expanding baby universe will engulf and destroy everything, including its Mother.
B. No, the expanding baby universe will create its own new spacetime inside the black hole.
Inside Black Holes: Yes/No Questions
Index