holy thang
tough question.. not because of it's nature, but because of how Allah has referred to miracles as something only He can do or gift his messengers with.. all else is just *nazar ka dhoka.
54:1]** The hour drew nigh and the moon did rend asunder.
[54:2] And if they see a miracle they turn aside and say: Transient magic.
54:3]And they call (it) a lie, and follow their low desires......
I think the contradictory part is where i'd draw the line.. but i'm not sure cuz everything I know and understand could be wrong too!