This is a video of a presentation held by me at the MSRI in Berkeley on December 2, 1999. It is probably the first talk I gave that was videotaped.
In the talk I demonstrate Cinderella and discuss how the communication of geometry and the publication of it could change in the future. Sometimes it feels like I could give exactly the same talk today, as most people don't know what we did 10 years ago.
Interesting trivia: The Acrobat version at that time was 3.0. But hey, we had PDF already!