What do we call visible light? We call it color. But the electromagnetic spectrum runs to zero in one direction and infinity in the other, so really, children, mathematically, all of light is invisible.
~ Anthony Doerr in ALL THE LIGHT WE CANNOT SEE
Hope locates itself in the premises that we don't know what will happen and that in the spaciousness of uncertainty is room to act...Hope is an embrace of the unknown and the unknowable.