Part 3/12:
The foundation of quantum mechanics lies in understanding "superpositions," which describe the myriad states a quantum system can occupy before measurement. The most accepted interpretation, the Copenhagen interpretation, suggests that the act of measurement causes these superpositions to collapse into one definite state. Yet, this doesn't clarify the underlying reality of what happens before the measurement, nor what consciousness has to do with it, leading to heated discussions among physicists and philosophers about the implications of quantum theory.