The Importance of Quantum Mechanics

I don't believe any more there is anything that goes under the name of quantum cosmology. It comes from actually thinking about foundations of quantum mechanics, which I try to think about from time to time. We're always doing something to a quantum system. And because quantum mechanics there's no prediction for the definite outcome of the experiment,. There are probabilities for different possible outcomes. So nature will repeat itself, and experiments will be repeatable, because there are timeless laws of nature.