Martin Bojowald

This one adopts the point of view of loop quantum gravity, an in-progress approach to reconciling general relativity with quantum physics. Less ballyhooed than string theory, it differs from the latter in that it posits that space and time themselves are quantized (discretized). Having a smallest possible time interval (probably ~10^(-42) sec) implies there is a largest possible energy density, and this would enable the troublesome theoretical singularities in black holes and at the Big Bang to be avoided. Pre-Bang times would exist and cyclicity of the universe would be a possibility. A good, fresh contribution.… (plus d'informations)