scene from "Blade Runner 2049"

If you think you haven't seen any movies based on Philip K. Dick's work, you're probably wrong.  David Gill talks about Hollywood's adaptations of Dick's work.

hall of mirrors

The central question of Philip K. Dick's fiction is "What is reality?" Literary critic Umberto Rossi explains that Dick's work often contains many possible realities.

Clock of the Long Now

Alexander Rose tells Anne Strainchamps about the Clock of the Long Now — an all mechanical clock being constructed in the high desert of Western Texas designed to run for ten thousand years.

Physicist Don Gurnett has recorded what you might hear from inside a spacecraft, and it isn't just the sound of desolate silence.

a green building

Rebuilding has gone on in New Orleans, Sri Lanka, Kashmir, and other places devastated by natural disasters. But what kind of structures are going up? In this hour of To the Best of Our Knowledge, green architects and designers talk about building for the future. Also, a look at the latest...

city at daybreak

Every sixty seconds, 259 new people show up in the world's cities. No one is building housing for them. No government is planning for them. In this hour of To the Best of Our Knowledge we'll explore the evolving city in a world of a billion squatters, with another billion on the way.

robot brain

Steve sat down with logician and mathematician Roger Antonsen and computer science pioneer Barbara J. Grosz to talk about how AI will challenge our own perception of intelligence in ways we might not expect.


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