Before revision:  We develop a new theory , based on the properties of a  weakly self-avoiding, one-dimensional "telegraph" process , that collapses both experimental data and computer-simulation results onto a single master curve throughout the experimentally relevant region of parameter space  .
After revision:  We develop a new theory , based on the properties of a weakly self-avoiding, one-dimensional "telegraph" process , that collapses both experimental data and computer-simulation results onto a single master curve throughout the experimentally relevant region of parameter space and explains the mechanisms at play .