What is a "singularity"? I'm not sure I understand this concept? Isn't it just a "mathematical" concept, like "infinity" or "zero"? Couldn't it be equated with a similarly non-sensical concept as "God"? I know Hawking tries to eliminate the concept of a "singularity". But I'm not sure of what the alternative theory is? How, as atheistic materialistic hard/cold/logical scientific beasts, do we explain the big bang & black holes etc? I don't like the concept of the "singularity" - ie an unseeable "zero"-dimensional "point". To me, it reeks of superstition. So, what is the alternative?