Researchers led by a team from Emory University recently announced that they had used artificial intelligence to predict patients’ self-reported racial identity from medical images. It is an unexpected, unsettling result.

‘Going with the natural look as I start my 36th year,’ said the caption above a series of selfies of a woman with caramel-coloured skin and a loose afro (type 3b/3c), admiring the silhouette of her hair from different angles. Rachel Doležal is reported to have published the photos on Facebook in November 2013, around the time she was elected president of her local chapter of the NAACP. Last week it transpired that Rachel Doležal’s skin shade and hair texture might be the result of a spray tan and a wig, rather than the natural complexion of a person with African or African American heritage in her immediate family history. It appears that Doležal is a white woman who has gone out of her way to pass as black: ‘our’ hair, she said in a lecture on the history and politics of African American hair – while seemingly wearing an afro wig over her naturally straight, blonde hair.