How difficult it is to see even 15 years into the future

Even science fiction writers have difficulty seeing into the future... even 15 years into the future.

In the 1987 episode The Naked Now of Star Trek: The Next Generation, nearly everyone on board goes loopy due to a virus. First Officer Riker vaguely recalls a similar disease and tells Mr. Data to scan the Starfleet database. Mr. Data starts reading at the console very fast and tells Riker it will take a few hours.

Now, everyone just yells: "Google it, you idiots!"