‘Foundation,’ based on Asimov’s work, thinks big — galaxy big

Most TV dramas try to tell stories over a few years with maybe half a dozen central characters. The new series “Foundation” is a bit more ambitious — try 400 years and 25 million worlds.

To say it’s sweeping doesn’t do it justice. World-building is one thing. “Foundation,” a four-year project debuting on Apple TV+ on Friday, is galaxy-building.