Quantum mechanics is a many-splendored thing, but don't ask the socks.
It seems that when you try to observe the socks, they don't behave as you expect.
Perhaps it's because they're still trying to figure out how to match.
Quantum Socks: The Unpredictable Kind Socks of Chaos: The Randomness Theory Socks of Quantum Mechanics: Where the Rules Don't Apply The Sock Uncertainty Principle: We Don't Really Know What's Going On