For many, the available means of self-documentation leave something to be desired. There is the photograph, which documents a lifetime of discrete moments; video, which records us in sound and motion; and the hologram, which portrays us in its rainbow colours in three dimensions.

If this is to change, holography may hold the key to a new type of self-portrait - one that combines all these three technologies. This new electroholographic self-portrait would live in the computer, presumably. Once the program was running, the portrait could emerge like a genie out of a bottle. For all intents and purposes, it would be indistinguishable from the sitter. Given this fidelity of replication, this double could evolve its own agenda. It may prefer, for instance, to live in the sitter's past or future.

New horizons await the enormous potential of holography. It must only remember the long shadow of the sorcerer's apprentice.

Jasia Reichardt spoke in the Critics' Forum