Stephen Sackur speaks to the data scientist Stephen J Shaw who says humanity faces a looming demographic crisis, with falling birth rates having dire economic and social consequences.

Stephen Sackur speaks to the data scientist Stephen J Shaw who says humanity faces a looming demographic crisis, with falling birth rates having dire economic and social consequences.

Stephen Sackur speaks to the data scientist Stephen J Shaw who says humanity faces a looming demographic crisis, with falling birth rates having dire economic and social consequences.

Stephen Sackur speaks to the data scientist Stephen J Shaw who says humanity faces a looming demographic crisis, with falling birth rates having dire economic and social consequences.

Stephen Sackur speaks to the data scientist Stephen J Shaw who says humanity faces a looming demographic crisis, with falling birth rates having dire economic and social consequences.