On the 4 forces

[MorganW]

Are there any theories about what happens to the other 3 forces (Electromagnetism and the Strong and Weak Nuclear) as they approach the singularity within a Black Hole? Do all 4 merge or are they "overcome" by Gravity's increased state?

 

[Saiph]

as they approach the singularity, the energy of the system increases which should, if the Grand Unified theory is correct (well, more of a hypothesis at this point), cause them to merge into one big, weird, currently unfathomable force.

But we haven't really got a clue how that'd work, yet...