Science, Writing, Physics, Mathematics, Quantum Physics.
spin-up and spin-down. When measured it could be in either of the following states: |↑⟩ = spin up |↓⟩ = spin down But here’s the caveat. If our electron — our quantum system — is just left alone then it is said to be in a superposition of both of these states, In other words, the electron isn’t |↑⟩