From John Bell, Berkhamsted, Hertfordshire, UK
In your look at how to live to 100, Bryan Johnson states that he doesn’t need to worry about how long he will live because it won’t be long before he can upload himself to an AI(20 September, p 40).
This is, of course, massively optimistic, requiring not only the technology, but also that AIs can be sentient, that the experience of being a human doesn’t require a body and that the AI subjectively feels like it is a continuation of Johnson. If he’s just saying this to avoid ruminating and get a good night’s sleep, then fair enough.
