The quantum information did exist all along; it just 'leaked' into the environment through a process known as decoherence: https://en.wikipedia.org/wiki/Quantum_decoherence

This is why I object to classical analogies using envelopes and cards and pennies that end with "Yeah QM is strange". It's really a fundamental physical/mathematical effect, and it's much less intuitive if you make a mapping to objects in a classical world. I often feel conceptual maps to information worlds (like books and the internet) are more intuitive.