China's President Xi Jinping and Russia's Vladimir Putin were this week reportedly overheard chatting about the possibility that organ transplants might help them achieve immortality.

That's scary because both already show signs of intending to rule their nations for the remainder of their lives, and because we know those lives can now be extended into the digital realm.

In late 2023, I met Simon See, who serves as a professor at three universities and is chief solution architect and global head of Nvidia AI. See told me sufficient material exists to create AI-powered interactive versions of historical figures like Napoleon, and that researchers are already working on such reconstructions in the hope they will help bring history to life.

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