The Neurological Basis for your ability to think systemically. Fantastic TED talk by neuroscientist VS  Ramachandran, author of Phantoms in the Brain on what neuroscience tells us about inter-relationships in the brain and our ability to make connections and spot similarities in disparate input. Watch until the end, when he pulls it all together beautifully. Covers Capgras Delusion, Phantom Limb Syndrome and Synesthesia.