1) The edge of the (visible ) universe is a singularity.
2) The CMB is the event horizon
3) Inflation was from a point where we were being pulled at faster than light speeds towards the singularity
4) Current SOL is defined by our relative speed towards the singularity ( which is infinite speed - contraction of our universe due to gravity )
5) Space gets more curved as we move towards the singularity which actually pushes us away from it ( and everything else )