Stanford Neuroscientist: Can’t Remember Your Dreams? Your Brain May Be Warning You!
The Diary Of A CEO with Steven Bartlett
Apr 23, 2026
Neuroscientist David Eagleman reveals that dreaming is actually a defensive biological war to protect your visual cortex from being hijacked by other senses. He argues that by seeking "virtuous friction" and constant novelty, humans can actively sculpt their neural pathways to override cognitive decline and master the AI age.
Key insight: The biological purpose of dreaming is territorial defense: it blasts random activity into the visual cortex to prevent auditory and tactile senses from hijacking that neural space while we sleep in the dark.