I've recently gotten into *The Flash* TV show, and so I've been reading about his powers.

What I don't understand is why his typical rogues pose a threat - it seems like there should be very little limit to his powers.

 - **He can go back in time**, so if he loses a battle or the bad guys do
   something, he can go back and preempt it.
 - In the new 52, he can all but **predict the immediate future**, so he can
   see bad things that are going to happen and stop them.
 - **He can phase matter through matter**, or let matter pass through him.
   This means he is all but immune to weapons fire.

I haven't read enough of the old comics so I don't the know challenges he's had. For a guy who can't be attacked, can time-travel and can race around the globe several times in a minute, I can't imagine there is much that could pose a threat.