Facing up to the Future

Recent claims by psychologists reckon that, on average, people can recognise the faces of about 5000 people (https://www.theguardian.com/science/2018/oct/10/how-many-faces-average-person-recognises-5000). I am pretty certain there is a considerable variation as people (like myself) with Aphantasia can probably identify fewer and I have seen reports on the employment by the police of so-called 'super-identifiers'.