Douglas Sipp1, Leigh Turner2, John E J Rasko3. 1. RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima Minamimachi Chuo-ku, Kobe, Japan 650-0047; Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, Japan 160-8582; Keio University Global Research Institute, 2-15-45 Mita, Minato-ku, Tokyo, Japan 108-8345; RIKEN Center for Advanced Intelligence Project, Nihonbashi 1-chome Mitsui Building, 1-4-1 Nihonbashi, Chuo-ku, Tokyo, Japan 103-0027. 2. University of Minnesota Center for Bioethics, N504 Boynton, 410 Church Street SE, Minneapolis, MN 55455, USA. 3. Gene and Stem Cell Therapy Program, Centenary Institute, The University of Sydney, Camperdown, NSW 2050, Australia; Sydney Medical School, University of Sydney, Camperdown, NSW 2006, Australia; Cell and Molecular Therapies, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia. Electronic address: j.rasko@centenary.org.au.