Superposition: Being Everywhere at Once
Unlike classical bits that are strictly 0 or 1, a qubit can exist in a state of superposition. This means it can represent both 0 and 1 simultaneously until it is measured.
Imagine spinning a coin. While it's spinning, is it heads or tails? It's a blur of both. Only when you slap it down on the table (measurement) does it collapse into a definite state. This property allows quantum computers to process a vast number of possibilities concurrently.