Sources and acknowledgments
Many people contributed their time and energy to this Technology Quarterly. In addition to those quoted in the article, the author would like to thank: Dan Budwick, Thomas Gardella, Christiane Hertz-Fowler, Harald Jueppner, Sabita Sankar, Aviv Regev, Mike Turner, and Raquel Yotti.
This article appeared in the Technology Quarterly section of the print edition under the headline “Sources and acknowledgments”