We investigate the kinetics of self-assembly by means of Brownian dynamics simulation based on a idealized fluid model (two 'sticky' spots on a sphere) in which the particles are known to form into dynamic polymer chains at equilibrium. To illustrate the slow evolution of the properties of these self-assembling fluids to their equilibrium assembled state values at long times, we perform Brownian dynamics simulations over a range of quench depths from the high temperature unassembled state to ...