I think there's a qualitative difference between shifting to an AV system or a ranked ballot system, however it gets operationalized, and shifting to a system in which we create different types of members of Parliament or we use a fundamentally different rule to convert votes into seats. Is a move to ranked ballots a fundamental change? I'm not sure. I think there is an argument that it could be. You could argue against it, I suppose. It's not the shift that would occur under, for example, MMP, or certainly open-list PR.
On August 30th, 2016. See this statement in context.