He thinks that the social giant is overthinking its role as an enjoyable time-waster.

FORBES: Not Far From The Tree: Ray Kurzwiel And The Verticality Of The Silicon Valley Mind

Or if it turns about to be another social media time-waster, albeit dressed up for the corporate world.

FORBES: Is It Possible to Have Too Much Information In Sales?

While many players may peek at a puzzle, only a select few devote enough time and effort to transform them from a time-waster into a passion.

WSJ: Mets Find Answer

Twitter: the ultimate time-waster or an invaluable social media tool?

FORBES: Is Twitter Turning Us Into Twits?

So if you're willing to indulge a sappiness factor that's off-the-charts, and you don't mind movies that just sort of tread water, The Lake House may be your kind of time-waster.

NPR: Double Feature: Playing with Words, and Time