In another parallel universe the amplituhedron, a recent invention in quantum field theory, is a geometric form endowed with a positive Grassmannian, that is an internal arithmetical structure for the calculation of amplitudes in terms of k-planes filling up an n-dimensional space.

They come to me from the years agone, Like echoes from far away :Like sunbeams that faded at yesterdawn, Like the glory of yesterday.

A snort or two of devil's dandruff has re-erected the Mighty Quinn from his emotional crash earlier, so all four of us have come clubbing.

It's a bit confused at the moment, I'll try to sort it out later.