Blog » Quite a lot of science fiction isn't about what it's about.
"Lena" is about uploading, but uploading isn't real. It doesn't exist.
It might exist at some point in the future, but that just seems pretty improbable to me. As I understand it, right now, to "accurately" simulate the behaviour of just a handful of neurons requires a building-sized, custom-built supercomputer, running at around 1/1000th of real time. A human being has one hundred billion neurons, so the distance from here to there is something like nine orders of magnitude of processing power, and the distance from there to the "Lena" scenario is several orders of magnitude again. Moore's Law has to tap out at some point, right?
And the really hard problems probably aren't problems you can throw more and more transistors at. The real problems will be biological factors I know next to nothing about. What about the scanning process? How do you simulate the rest of the body and what happens when you don't? What happens when ...