“But we can sympathize readily with a theorist who is frustrated by the uncertainly surrounding the experimental results. Definitive progress in the subject is linked inextricably to obtaining measurements of vastly improved quality. It would be presumptuous to relegate theory to the role of merely explaining empirical facts. On the contrary, we emphasize that theory should play a major part in posing the right questions,” Sreenivasan and Antonia, `Small-Scale Turbulence,’ Annu. Rev. Fluid Mech., 1997.