Are computers smarter than humans? Why is sleep so essential? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? Can you unlearn sleeping in the dark? What happens in the brain when you take psychedelics? Can I learn from a text by listening to it while I sleep?  Why are you grumpy after a bad night of sleep? Can a brain scan show whether people are already producing their language response while their conversation partner is still speaking? Can you distinguish between people who are visual or auditory learners? How are memories made in the brain?