" Quantum mechanics asserts that the relationship between the quantum state and the outcome of a measurement is probabilistic. Generally, there is a range of possible outcomes of a given measurement. These will each occur with some probability, and these probabilities depend on the quantum state. In the case where we measure the position of a particle, this dependence is particularly simple: The probability of finding the particle at a particular location in space is proportional to the square of the height of the "

― Lee Smolin , Einstein's Unfinished Revolution: The Search for What Lies Beyond the Quantum