Effective translation of natural languages comes awfully close to requiring a sentient translator program.
Vernor VingeBut every time our ability to access information and to communicate it to others is improved, in some sense we have achieved an increase over natural intelligence.
Vernor VingeAll evil and good is petty before Nature. Personally, we take comfort from this, that there is a universe to admire that cannot be twisted to villainy or good, but which simply is.
Vernor VingeHere I had tried a straightforward extrapolation of technology, and found myself precipitated over an abyss. It's a problem we face every time we consider the creation of intelligences greater than our own. When this happens, human history will have reached a kind of singularity - a place where extrapolation breaks down and new models must be applied - and the world will pass beyond our understanding.
Vernor Vinge