Parliamentary Voting System and Constituencies Bill

Before he completes his speech, will the noble Lord explain the rationale behind the selection of seven years for the review? By definition, that would mean that more constituencies would be subject to change than if it was five years. If he went for a longer period, presumably even more constituencies would be subject to change, so all the arguments that he has been advancing, which I entirely endorse as someone who was very proud to represent an interesting part of the country, would fall by the wayside if more constituencies were changed as a result of his proposal.