Quantum mechanics is a bit of a mess, isn't it? I mean, you've got wave functions, superposition, and entanglement. It's all a bit too much for the human brain to handle.
Enter decoherence: the theory that explains why quantum mechanics isn't as weird as it seems. Or is it just a cop-out?
Decoherence theory states that the interactions between a system and its environment can cause the system to lose its quantum coherency.
Think of it like a fancy cocktail party. You're having a great time, but then someone spills a martini on the carpet and suddenly the whole vibe shifts.
Same thing with decoherence: it's like the environment just spilled a martini on the carpet of your quantum system.