classical mechanics (analogue) that by throwing a marble at the moon a tiny but calculable shift occurs in the moon's position and that every marble thrown will produce a similar shft until a trillion marbles lateran observable shift is noticed

quantum mechanics (digital)   that no shift occurs until the trillionth marble has been thrown and enough energy has built up to cause a shift

classical mechanics (analogue)  that as the sun's mass dissipates (four million tons every second) its gravitational pull on the earth decreases accordingly so that a gradual increase of the distance between the earth and the sun occurs micro second by micro second

quantum mechanics (digital) that no change in position can occur until a minimum energy exchange ( planck's constant or a multiple of it) has taken place  have a go at thinking of an example yourself

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