Pusey, Matthew F.
Article History
First Online: 18 September 2018
Change Date: 12 October 2018
Change Type: Correction
Change Details: In the version of this News & Views originally published, the link for ref. 7 was incorrectly given as https://arxiv.org/abs/1604.07422; it should have been https://scirate.com/arxiv/1604.07422. This has now been corrected.