I spoke to a Holocaust survivor’s 3D hologram. Then I phoned the survivor.

I sat down across from Renee Firestone and asked her about her life during the Holocaust. The conversation flowed: what her life was like before the war, and how she endured Auschwitz. The small, spirited 97-year-old survivor was direct and honest, answering personal questions with powerful details—all the more remarkable because the real Renee Firestone wasn’t actually there.