Because we, only by inductive reasoning, are sure about next moment 'happening' (or more precisely, not worried about it not happening), does this mean that there is no logical guarantee that next moment (universe, consciousness, existence or perhaps anything we can perceive) will certainly happen?
there is no guarantee that the previous moment happened (you could have just spawned will implanted memories), or that the next will happen (it's just unseen and therefore unlikely).
There is no guarantee either that time flows from past to future. We could be in a sort of movie watched in reverse and would have no way of knowing it. The movie tape analogy helps with these time issues.