I’ve briefly looked into SENS and it comes across as cultish and not very credible. Nanotech would be neat, but getting it working and usable as nanobots swarming human body without extreme adverse effects seems like something achievable but with a timeline of half a century or so. Kurzwell has not had a great track record in forecasting. I think the best chance of extending human lifespan of someone alive today until the aging kinks are worked out is figuring out hibernation: slowing down metabolism 10-20 times and keeping the body in the fridge. But I don’t see anyone working on that, though there is some discussion of it in the context of months-long interplanetary travel.
Kurzwell is completely inept at making predictions from his graphs. He is usually quite wrong in a very naive way. For example, one of his core predictions is when we will achieve human-level AI based on (IIRC) nothing more than when a computer with a number of transistors equal to neurons in the human brain could be bought off-the-shelf for $1000. As if that line in the sand had anything at all to do with making AGI.
But his exponential chart about transistors/$ is simply raw data, and the extrapolation is a straightforward prediction that has held true. He has another chart on the topic of manipulatable feature sizes using various approaches, and that also shows convergence on nanometer-resolution in the 2035-2045 timeframe. I trust this in the same way that I trust his charts about Moore’s law: it’s not a law of nature, but I wouldn’t bet against it either.
I’ve briefly looked into SENS and it comes across as cultish and not very credible. Nanotech would be neat, but getting it working and usable as nanobots swarming human body without extreme adverse effects seems like something achievable but with a timeline of half a century or so. Kurzwell has not had a great track record in forecasting. I think the best chance of extending human lifespan of someone alive today until the aging kinks are worked out is figuring out hibernation: slowing down metabolism 10-20 times and keeping the body in the fridge. But I don’t see anyone working on that, though there is some discussion of it in the context of months-long interplanetary travel.
Kurzwell is completely inept at making predictions from his graphs. He is usually quite wrong in a very naive way. For example, one of his core predictions is when we will achieve human-level AI based on (IIRC) nothing more than when a computer with a number of transistors equal to neurons in the human brain could be bought off-the-shelf for $1000. As if that line in the sand had anything at all to do with making AGI.
But his exponential chart about transistors/$ is simply raw data, and the extrapolation is a straightforward prediction that has held true. He has another chart on the topic of manipulatable feature sizes using various approaches, and that also shows convergence on nanometer-resolution in the 2035-2045 timeframe. I trust this in the same way that I trust his charts about Moore’s law: it’s not a law of nature, but I wouldn’t bet against it either.