not edge per se but don't we see the expansion of the universe as a cone keep the model and look at it in terms of the furthest point of expansion. what would we find...
I'm just thinking that the fabric of space reminds me of oil on water in my kitchen sink. If the universe itself started in an equilibrium and a random force bounced into this substance just like adding your favorite dish soap to the water. the oil automatically starts to gather create eddies...