Is the world real, or is it just an illusion or hallucination?
We asked renowned neuroscientists, physicists, psychologists, technology theorists and hallucinogen researchers if we can ever tell that the "reality" we are experiencing is "real."
Science
From zombies to Mad Max: the real fears behind apocalyptic movies
Apocalyptic movies are often based in real world paranoia. Hopes&Fears sought out the scientific explanations behind some of the biggest doomsday flicks.
