abstract:In the field of compiler optimizations, available expressions is an analysis algorithm that determines for each point in the program the set of expressions that need not be recomputed. Those expressions are said to be available at such a point.
Or would be better that more information and more expression was available but to a smaller audience which is probably the relevant audience for any person?
Now I realized that what I thought had been an expression of my innermost humanity was nothing but a cloud of life-style signals, available to anyone at the click of a mouse.