Though there is little prospect of creating a genuinely conscious robo-clone in the foreseeable future, several companies are taking the first steps in that direction. Their initial goal is to enable you to create a lifelike digital representation, or avatar, that can continue long after your biological body has decomposed. This digitised "twin" might be able to provide valuable lessons for your great-grandchildren - as well as giving them a good idea of what their ancestor was like.
Ultimately, however, they aim to create a personalised, conscious avatar embodied in a robot - effectively enabling you, or some semblance of you, to achieve immortality. "If you can upload yourself into this digital form, it could live forever," says Nick Mayer of Lifenaut, a US company that is exploring ways to build lifelike avatars. "It really is a way of avoiding death."
For now, Lifenaut relies on a series of personality tests, teaching sessions and uploaded personal material such as photos, videos and correspondence. The result, Mayer says, will be an avatar that looks like you, talks like you and will be able to describe key events in your life, such as your wedding day. But how far can such technology go? How much of your personality and knowledge can be reproduced by a computer? Can we ever hope to use avatars to resurrect the dead?
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