Our next aim is to investigate numerically computed Navier-Stokes flows as a function of Reynolds number. Since code for the Taylor-Couette system is particularly well-developed and tested, and considering the growing number of applications as a reaction vessel, this is the system we will continue to investigate, first for steady flows (steady in a rotating frame) and then time-dependent flows. Because thermally driven flows are so important, we are keen to investigate these as well. Then there is the problem of studying the particle paths of tracers with inertia, finite size, non-spherical, chemical reactions, etc. These studies will in turn stimulate analytical studies. Needless to say there is much to do and will involve the interaction of numericists, analysts, and experimentalists.