Move-in day for students at the University of Southern California this week led to a remarkable small-world moment between two strangers with ties to the Holocaust in the public-exhibit space of USC Shoah Foundation’s lobby.

Fifty-eight-year-old Alexander Moissis of the San Francisco Bay Area and his wife were helping their freshman son move into a dormitory when Alexander decided to steal away for a few minutes to visit USC Shoah Foundation, which is located on campus next to the dorm.

In February 2012 Holocaust survivor Pinchas Gutter sat down inside a light stage surrounded by 50 cameras and 6,000 LED bulbs to give his testimony to the USC Shoah Foundation’s Visual History Archive.

Gutter’s interview was the first proof of concept of Dimensions in Testimony (DiT), a groundbreaking new technology that enables viewers to pose questions to survivors like Gutter and hear their responses in real-time, lifelike conversation.

Growing up, it wasn’t terribly unusual to see people in our house with telltale tattoos on their arms.

We kids somehow knew what those blurry inked numbers meant, but we also knew it wasn’t polite to ask about them. And so, I never did. And honestly, no one in my family had been so marked — the people with tattoos were mostly friends of my grandparents — so it wasn’t something I had a lot of interest in hearing about. And perhaps in an effort to protect our innocence, family elders showed no interest in talking about it.