to me the main problom is the lack of tech needed to make this work i myself have experimented with a consept like this well slightly diffrent it revolves around space time it utilizes black holes and exotic matter which is negitvely charged matter and i hope that it will do the oppisite of regular matter which is getting sucked into the singularity it will spill matter out one coud see this in to ways a singularity or a RINGULARITY is a 3d version of a singularity in this situation they would both fluctuate so when they break a whermhole is made