In a real sense this is a talk that many in the audience could easily give. As they say in the current jargon, "we have been there, done that, are doing that, and hope to be doing that for awhile!" Let us begin by agreeing to talk about the unsteady flow beneath a free surface of a viscous incompressible fluid. I shall trace some history, talk about what is being done now, and comment on potential developments and/or where current efforts are leading us. Given the time available and my own biases, this will not be an historian's account; I have had to make choices about emphasis and could not be complete in my coverage. Thus, those whose work is not herein discussed should not feel slighted, it is only that their work did not fit in this small painting by this amateur artist!
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