The average human brain is capable of remembering four things at a time. So why can some people remember four hundred? In this one hour documentary we explore the incredible world of competitive memory by following the stories of a group of British hopefuls as they take on the challenge of competing against the world’s leading memory athletes at the World Memory Championships in China. The average human brain is capable of remembering four things at a time. So why can some people remember four hundred? In this one hour documentary we explore the incredible world of competitive memory by following the stories of a group of British hopefuls as they take on the challenge of competing against the world’s leading memory athletes at the World Memory Championships in China. The average human brain is capable of remembering four things at a time. So why can some people remember four hundred? In this one hour documentary we explore the incredible world of competitive memory by following the stories of a group of British hopefuls as they take on the challenge of competing against the world’s leading memory athletes at the World Memory Championships in China. The average human brain is capable of remembering four things at a time. So why can some people remember four hundred? In this one hour documentary we explore the incredible world of competitive memory by following the stories of a group of British hopefuls as they take on the challenge of competing against the world’s leading memory athletes at the World Memory Championships in China.