A measure of representation or a representation dimension can be considered as a vector of three spatial dimensions. In high-energy physics, this is why a second dimension is characterised as the so-called fourth dimension of time. (Actually a distance dimension, because time is multiplied by light speed velocity.) Binomial STV is in one dimension. That is its virtue, as one complete dimension of choice, which can be readily extended to a second dimension. (Binomial STV is one dimension of choice, that is to say.) Representation is also considered as a vector of three dimensions, such as the thinking, doing, feeling dimensions of representation. The feeling dimension would be the Left – Right dimension of party loyalty. So, firstly, there is representation as a passion. Gilbert and Sullivan wondered why every infant born alive was either a little liberal or a little conservative. In the 2019 British general election, if you saw Scottish first Minister Nicola Sturgeon, shaking her raised fists in jubilation, at a Scottish National Party candidate unseating the Liberal Democrat leader, under First Past The Post, you wouldn’t doubtparty as a tribal passion. In the Scottish parliament, such pugilistic histrionics would be an act, really, literally “hypocritical.” For, the additional member system or mixed member proportional is “the zombie system,” whereby defeated single members rise from the dead, on their party lists. (With AMS, a duplicate SNP, like Alba, was formed to double count the Scottish independence vote, at Scottish general elections.) For a second “spatial” dimension of representation, it is sufficient to move from politics to psychology, and the behavioral dimension of introversion – extroversion or isolationism and sociability. A third empirical dimension could be centralism versus devolution or authoritarian versus libertarian. This is a question of intellectual attitude or the thinking dimension of representation. Within the sphere of popular politics, it is essentially the distinction between the republican and the democrat. Representation can be viewed as a synthesis or vector of three components of individual voters personal representation. The three dimensions of representation are in a relation of Euclidgeometry, from which they can transform into a one dimensional vector. But in high-energy physics, the fourth dimension, or second dimension, to the vector, forms a complex variable relation. The Minkowski Interval is a Euler circular function. It maps the two-dimensions of a plane. I explain how to do two-dimensional Binomial STV, at the end of my book, Statistical Relativity Elections.  Regards, Richard Lung.