Testimony Foundation
The Testimony Foundation was an organization created on New Earth in the year 5,000,000,012 by professor Helen Clay of theUniversity of New Earth. Its purpose was to allow the dead of the past to give their testimony of their lives in order for future generations to learn from the past. In exchange, the deceased would be granted a new form of life as glass avatars in order to interact with humans. (TV: Twice Upon a Time)
Technology
The Testimony Foundation employed a large starship capable of time travel. It could rival a TARDIS in terms of capabilities and could easily immobilize and capture one. The interior of the ship consisted of a vast chamber called the Chamber of the Dead. It had rows of archways from which glass avatars could be summoned and projected. In the center was a staircase which led to a computer and a chair where Helen Clay’s avatar sat and acted as both an interface and the pilot.
The Foundation employed memory extraction techniques in order to copy a person’s memories and then transplant them into a glass avatar. These avatars were in every respect the person they appeared as, but were also part of Testimony. A single avatar had a variety of capabilities. It could freeze time around it simply by willing it, teleport across different time periods and locations and project a perception filter around itself and others in order to remain undetected. An avatar could also shift between its default form, that of an androgynous transparent humanoid, and the form of the person it manifested as. (TV: Twice Upon a Time)