Archive for January, 2011

Hawking singularities

Sunday, January 16th, 2011

Though Stephen Hawking seems to have moved on from singularity theory in his latest book (, there is one point about singularities which still needs to be clarified, since even the Large Hadronic Collider website confounds a singularity with a moment of creation.

Hawking\'s Grand Design


The question is what sort of singularity? Most physicists think of a singularity as a Robertson-Walker singularity, or a point of infinite mass-density.

There are three key points to notice here.

A Robertson-Walker singularity is readily avoidable, if the cosmos rotates, for example. The whole point of Hawking’s singularity theory was to try to show that a singularity (or a true beginning of time, or creation) is somehow inevitable.