Correction to: Nature https://doi.org/10.1038/s41586-021-04051-8Published online 8 December 2021

In the version of this article initially published, the reference list in the main text of the PDF was incomplete, with refs. 28,29,30,31,32,33,34,35,36,37 appearing online only. For completeness, the refs. are now listed below.

The corrections have been made to the online version of the article.