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“In quantum computing, a qubit or quantum bit (sometimes qbit) is a unit of quantum information-the quantum analogue of the classical bit.

A qubit is a two-state quantum-mechanical system, such as the polarization of a single photon: here the two states are vertical polarization and horizontal polarization.

In a classical system, a bit would have to be in one state or the other.

However, quantum mechanics allows the qubit to be in a superposition of both states at the same time, a property that is fundamental to quantum computing. ...”

Bit versus qubit:

The bit is the basic unit of information. It is used to represent information by computers.

Regardless of its physical realization, a bit has two possible states typically thought of as 0 and 1, but more generally-and according to applications-interpretable as true and false, or any other dichotomous choice.

An analogy to this is a light switch-its OFF position can be thought of as 0 and its ON position as 1.

A qubit has a few similarities to a classical bit, but is overall very different.

There are two possible outcomes for the measurement of a qubit-usually 0 and 1, like a bit.

The difference is that whereas the state of a bit is either 0 or 1, the state of a qubit can also be a superposition of both.[2]

It is possible to fully encode one bit in one qubit.

However, a qubit can hold even more information, e.g. up to two bits using superdense coding.

For a system of n components, a complete description of its state in classical physics requires only n bits, whereas in quantum physics it requires 2n-1 complex numbers.[3]...”

https://en.wikipedia.org/wiki/Qubit

“It is possible to fully encode one bit in one qubit.

However, a qubit can hold even more information, e.g. up to two bits using superdense coding.”

I must be seriously missing something...

So a qubit can hold up to two bits of information, and this is supposed to be exciting or earthshaking??

What am I missing?