More from John Casti
Explore the latest news, articles and features
Life
The wisdom of herds: How social mood moves the world
Opinion
I know what you’ll do next summer
Features
The ties that bind us
Books & Arts
From stars to chaos
Books & Arts
Tall tales
Books & Arts
Prophet warning
Books & Arts
Firm forecast
Features
Satisfaction guaranteed
Features
Easy does it
Features
Review : Would you risk it?
Books & Arts
Truly, madly, randomly
Features
Review : Bubbles and butterflies
Books & Arts