It's still continuous, as even when fully ticking, it still goes from point a to b passing through all the in between points... well, up to planck length at least...
Ticking just makes the motion jerky/abrupt, not discontinuous/discreet...
Ooh, alright, you win this one, but only on a technicality. I won't mention the fact that liquid crystals are also in a constant state of motion while under power ;-)
