A student raises her hand and asks a question into the microphone. The woman on the screen in front of them pauses, blinks, and answers. The classroom falls quiet as Holocaust survivor Sonia Warshawski describes what she lived through in her own words. For a moment, it feels as if she is sitting with the students.

I have watched these exchanges through The Blue Card’s interactive hologram program. What students experience is built around Warshawski’s recorded testimony, with technology that retrieves her answers instead of creating new ones. If Warshawski answered a question during the recording process, the system plays her response. The artificial intelligence uses keywords from the question asked to find the closest answer. The AI does not create new answers by splicing or picking parts out of other recordings. It can only play a single prerecorded video response that most closely connects to the keywords in the question. If she did not, it pauses, protecting the difference between documented testimony and a machine-generated guess.