Iain Churches wrote:

I talked on the phone with a chap today who
told me he had a very good idea for a high-end
loudspeaker cable.

It was based upon some thick twin co-axial with
two separate shields. He had then connected
the screen of the left wire to the inner of the right
wire, and the inner of the left wire to the screen
of the right wire.

What exactly did he imagine this achieved ?

Graham