Part 3/10:
To illustrate this, consider two electrons possessing a property called spin. Each electron can either be "spin up" or "spin down," akin to a coin flip resulting in heads or tails. If these electrons have become entangled, the measurement of one electron's spin will instantly determine the state of the other; if one is spin up, the other must be spin down. This non-local correlation defies classical intuition and was famously critiqued by Albert Einstein, who dubbed it "spooky action at a distance."