Chemical fuel driven dissipative assembly of micron scale colloids generally creates transient aggregates that persist for up to one day , while transient nanoparticle aggregates persist for several hours . The slow dynamics of conventional dissipative colloid assembly are rooted in the diffusion-based processes that form and break up transient aggregates. Likewise, solvophobic patches on colloids become buried in aggregate cores during dissipative assembly, limiting water access needed to hydrolyze the metastable surface ligands and break apart the aggregates . The rapid dynamics of the present system is rooted in electrokinetic conventiondriven assembly and disassembly of colloidal crystals. Here electrokinetic fluid flows with velocities on the order of 𝜇𝑚/𝑠 mutually entrain neighboring colloids. Prior work showed that active repulsion by EO flow between particles separated colloidal crystals by up to five times faster than pure diffusion . As such, the present system displays dynamics similar to field driven assembly of colloids, where particles rearrange on rapid time scales approaching single seconds.