Spin is an intrinsic quantum property of electrons, which causes them to behave like tiny magnets.
Now one can ask where the boundary lies between objects with quantum properties and classical objects.
Classical field theories remain useful wherever quantum properties do not arise, and can be active areas of research.
When two objects are once joined there is a sense in which they are forever linked, by quantum properties.
The Compton wavelength is a quantum mechanical property of a particle.
Spin is a quantum property without any classical analogue.
The quantum properties of particles could become entangled: fundamentally linked in their information content.
Elementary particles possess an intrinsic quantum mechanical property known as spin.
Subatomic particles have the quantum mechanical property of spin.
But, the second it goes outside, the same randomization of quantum properties that's causing Titan's problems will take effect.