No, the laws are the same everywhere. The timescape model just takes into account gravitational time dilation in large voids (where time passes faster). They

No, the laws are the same everywhere. The timescape model just takes into account gravitational time dilation in large voids (where time passes faster). They say this can explain the observation that the universe is expanding faster (in other words, it's not, it just looks like it). Also, this is about dark energy, not dark matter