The idea of the surreal Hollywood blockbuster Inception, where people travel through someone's dreams to 'plant' an idea in his head may not be so out-there after all.
Researchers at Yale have found that 'lucid dreamers' - dreamers who have 'waking dreams' that they control - are able to learn new skills in their dreams.
A team is now experimenting with the idea of 'training' people by telling them what to dream about.
I wonder if that would work for differential calculus? To read more, click here.