Paul Murphy (Dublin South West, Solidarity) | Oireachtas source

That speaks to my point that we should view the hardness of borders as something that can change over time as regulatory standards diverge. If Britain were to leave the EU on, say 1 January 2022, at that point in time standards between Britain and the EU would be quite similar. However, they would diverge over the course of the next five or ten years. What impact would that have on our borders over time? I am referring to both the Border between the North and South of this island the border between Ireland and Britain.