In quantum physics, a particle can be found at energy level 0 or energy level 1, but cannot be found at any level in between. (for example, this is a result of

In quantum physics, a particle can be found at energy level 0 or energy level 1, but cannot be found at any level in between. (for example, this is a result of the infinite 1D quantum well). That is the impossible that I was talking about. It's a very tiny jump in energy according to human perception - the interesting part is that the particle is only in state 0 or 1, never "in between".