With a background in maths and physics, the Hindu teacher Jay Lakhani is fascinated by the concept of nothing.

He traces the 7th century roots of the idea as a placeholder in counting systems, enabling complex calculations to be performed.

He then explores Hindu stories about the origins of the universe, when something came from nothing. With theologians tending to invoke God at the point of creation, Jay asks ‘What caused the Big Bang?’ and finds a surprising answer.