And a sympathetic but frustrated fan of the filmmaker's stories and characters is entitled to ask, why doesn't "How Do You Know" know what to do from scene to scene?

CNN: Review: 'How do you know' when a movie doesn't connect?

But if you're someone who's bought a piece of technology that you can't use or you don't know how to fully use, what should you do?

NPR: Tips for Fighting Technology Overload

You don't really know how much you can do until you stand up and decide to try.

WHITEHOUSE: It's Work Creating Jobs, But It's Worth It

For example, if someone from "IT support" calls you and asks for your password so they can help fix your problem, how do you know they haven't called everyone else in the building first until they found you who has really got a problem?

BBC: Viewpoint: How hackers exploit 'the seven deadly sins'

So how do you know you wouldn't have gotten this information sooner had you brought in another interrogator?

WHITEHOUSE: Press Briefing by Deputy Press Secretary Bill Burton

"That's how you know somebody didn't do their job, " said Mets relief pitcher LaTroy Hawkins, one of the few active players who was in the majors when interleague began.

WSJ: The South Side Comes to Flushing

Sponsoring the Olympic team is less costly than sponsoring individual athletes, and less risky, because "you don't know how well they will do, " says David Lauren, Polo's senior vice president of marketing, advertising and corporate communications, and founder Ralph Lauren's son.

WSJ: Polo Ralph Lauren Lengthens Its Olympic Run

"How Do You Know" asks really good questions but doesn't so much answer them as toss the ball from player to player until the clock runs out.

CNN: Review: 'How do you know' when a movie doesn't connect?

You won't know until February how he's gonna do.

CNN: Who chose George?