At the Shoah Foundation, I was able to converse with a still-living Holocaust survivor named Pinchas Gutter. Pinchas wasn’t really there, though; I was chatting with a hologram of Pinchas, which appeared on a flat, 2D display in the hallway. The conversation felt almost absurdly natural, due in large part to the foundation’s development of its own natural language processing system. At one point, I realized I felt rude interrupting a video.

Are holograms the future of how we capture memories? The Verge New Dimensions in Testimony