  We explain the steering of slow degrees of freedom by coupling them to driven
components for which the time-symmetric reactivities are manipulated. We
present the strategy and main principle that make that sort of navigation
feasible. For illustration, nonlinear limit cycles (as in the van der Pol
oscillator) and strange attractors (as in the Lorenz dynamics) are seen to
emerge when the driving in the nonequilibrium medium is kept fixed while the
frenesy is tuned to produce the required forces. We imagine that such frenetic
steering is available in Life as well, allowing selection of the appropriate
biological functioning.
