Dr Joseph Jebelli takes us on a seven-million-year journey through our own heads, drawing on insights from neuroscience, evolutionary biology, psychology, and philosophyto reveal how our brain's evolution turned us into Homo sapiens and beyond.

Discover how memory has almost nothing to do with the past; magic mushroom use might be responsible for our intelligence; and how autism teaches us hugely positive lessons about our past and future.

A single mutation is all it takes.