Before revision:  Thus, M. xanthus evolved to take advantage of an active-matter phase transition that can be controlled through changes in motility at the individual cell levelwithout complex feedback and chemical communication between cells .
After revision:  Thus, M. xanthus evolved to take advantage of a self-driven non-equilibrium phase transition that can be controlled through changes in motility at the individual cell levelwithout complex feedback and chemical communication between cells .