Ah, the infamous Example 4. Where the laws of classical physics are thrown out the window, and the fabric of reality becomes a jumbled mess of probability waves and uncertainty principle hijinks.
Learn about Quantum Entanglement, the ultimate relationship status of particles.In Example 4, we've got a wavefunction that's simultaneously collapsed and uncollapsed, existing in multiple states at once. It's like the particle version of being in a relationship, where you're both in love and in a state of perpetual confusion.
See how Quantum Fluctuations can change the game in Example 4.And don't even get us started on the Heisenberg Uncertainty Principle. Where the act of observing the wavefunction causes it to change. It's like trying to take a selfie with a particle accelerator, only to find out it's actually a different particle entirely.