I always had the feeling from the way of Jonathan Frakes acting in the scene that Riker wasn't Riker but Q impersonating him in the following dialogue and possibly also at the end of the episode. Maybe he was preparing Picard with this anomaly for the final test in "All Good Things"
"PICARD: What force or phenomenon could cause the shuttle to be thrown back in time?
RIKER: None that we've encountered. In theory, accelerating beyond warp ten.
PICARD: Using the gravitational pull of a star to slingshot back in time. Is that what happened here?
RIKER: The shuttle doesn't have warp capability.
PICARD: No. So some external force was needed.
RIKER: We've never encountered a natural force that powerful. Why only six hours? Why not a day? Or a year?
PICARD: Are you saying there was some conscious mind at work here?
RIKER: There's no evidence either way.
PICARD: The Traveller moved through time using the power of his mind. RIKER: I don't think that's the case here.
PICARD: No. And Manheim's experiments with gravity and time were rudimentary, and uncontrollable.
RIKER: Captain, I think this is one instance where you should suppress your natural tendencies.
PICARD: Oh, really?
RIKER: One of your strengths is your ability to evaluate the dynamics of a situation, and then take a definitive pre-emptive step, take charge. Now, you're frustrated because you not only can't see the solution, you can't even define the problem.
PICARD: Go on.
RIKER: What we're facing is neither a person nor a place. At least not yet. It's time.
PICARD: You're saying I should just sit down, shut up and wait.
RIKER: I wouldn't have put it exactly like that.
PICARD: Not something I do easily.
RIKER: Your Persian flaw.
PICARD: Yes, perhaps it is. (There's a nasty noise)
WORF [OC]: Captain to the Bridge. "
Interestingly there's not a single mention of Q in the episode, even if he should have been one of the major suspects for causing the events.
It's like he tried to prevent the crew from realizing that he might be pulling the strings and testing the crew again...
"PICARD: What force or phenomenon could cause the shuttle to be thrown back in time?
RIKER: None that we've encountered. In theory, accelerating beyond warp ten.
PICARD: Using the gravitational pull of a star to slingshot back in time. Is that what happened here?
RIKER: The shuttle doesn't have warp capability.
PICARD: No. So some external force was needed.
RIKER: We've never encountered a natural force that powerful. Why only six hours? Why not a day? Or a year?
PICARD: Are you saying there was some conscious mind at work here?
RIKER: There's no evidence either way.
PICARD: The Traveller moved through time using the power of his mind. RIKER: I don't think that's the case here.
PICARD: No. And Manheim's experiments with gravity and time were rudimentary, and uncontrollable.
RIKER: Captain, I think this is one instance where you should suppress your natural tendencies.
PICARD: Oh, really?
RIKER: One of your strengths is your ability to evaluate the dynamics of a situation, and then take a definitive pre-emptive step, take charge. Now, you're frustrated because you not only can't see the solution, you can't even define the problem.
PICARD: Go on.
RIKER: What we're facing is neither a person nor a place. At least not yet. It's time.
PICARD: You're saying I should just sit down, shut up and wait.
RIKER: I wouldn't have put it exactly like that.
PICARD: Not something I do easily.
RIKER: Your Persian flaw.
PICARD: Yes, perhaps it is. (There's a nasty noise)
WORF [OC]: Captain to the Bridge. "
Interestingly there's not a single mention of Q in the episode, even if he should have been one of the major suspects for causing the events.
It's like he tried to prevent the crew from realizing that he might be pulling the strings and testing the crew again...