Parliamentary Voting System and Constituencies Bill

My hon. Friend suggested that there would be changes every five years but that that might not affect every constituency. Does he agree that, for example, a constituency in the south that grew because of population changes and migration would necessarily have a nudging effect on contiguous boundaries and a domino effect all the way up the country, and that because it is likely that virtually every seat will change every five years during the 20-year period that my hon. Friend the Member for Sedgefield (Phil Wilson) mentioned, one's constituency might move around the country? [Interruption.]