  In our world the standard model of particle physics contains within it the
fairly intractable theory called QCD. A toy version with two colours is often
studied as a model confining and chiral symmetry breaking field theory. Here we
investigate the cascade of changes at various distance scales if we make this
change within the standard model. It is possible to limit the changes at the
hadronic scale. However, the minor changes that occur actually cascade down to
the far infrared, into nuclear and atomic physics, and chemistry. Through this
it also possibly affects the evolution of stars and galaxies. We remark on this
unexpected sensitivity of the universe to physics at the scale of quarks.
