Too high. We couldn't function with that requirement for knowledge.
We function just fine with our insufficient knowledge because we don't have a choice, and speculations, while perhaps comforting to indulge in, don't provide any real answers.
We walk through this world with one eye shut and the otrher one barely open, feleing our way aorund. We hope, and that's about all we can do. Ulitmately, that is the real peace if you can subit. We have some room to maneuver, but we have to leave the rest to "higher authority".
Whether you leave it to fate or to God, it doesn't matter. Try to live your life as fully as you can, while the blessings last and don't waste too of your time on empty speculations. The world is the way it is even if we don't understand it (Taoism).