“You might ask why we cannot teach physics by just giving the basic laws on page on and then showing how they work in all possible circumstances, as we do in Euclidean geometry, where we state the axioms and then make all sorts of deductions. (So, not satisfied to learn physics in four years, you want to learn it in four minutes?) We cannot do it in this way for two reasons. First, we do not yet know all the basic laws: there is an expanding frontier of ignorance...” (1-1 Feynman, Feynman Lectures in Physics: Volume I)
How refreshing. We don't and are not coming close to knowing everything. In fact, if you take the above seriously, for every answer we find, more questions are discovered.
