advancedatheist comments on Open thread, July 21-27, 2014 - Less Wrong

4 Post author: polymathwannabe 21 July 2014 01:15PM

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Comment author: advancedatheist 21 July 2014 04:28:48PM -1 points [-]

Why do transhumanists keep setting arbitrary (and frankly nonsensical) "immortality" dates in this century, like 2045?

One, these dates fall within the life expectancies of people alive in 2014. Plenty of people alive now could survive another 30 years and a few months any way, just through natural maturation and aging; they won't mysteriously "become immortal" by making it to January 1, 2045.

Two, you can't tell if a longevity breakthrough has occurred any faster than the rate at which humans happen to live. You would need institutions with the resources to collect data on the experimental groups and conduct longitudinal studies over many decades to see if they live a lot longer than the untreated control group of natural human populations. I don't know of anyone who has proposed doing that.

In fact, that shows the fallacy of Durk Pearson and Sandy Shaw's writings over 30 years ago. They wrote their first book, Life Extension, in their late 30's, where they make unsubstantiated claims that they had figured out how to decelerate their aging by ingesting certain artificial chemicals. (As I recall, this book in the early 1980's became hugely popular with the predecessors to today's transhumanists.) Yet Americans in their late 30's who have helpful genetics, enjoy good health and take care of themselves, naturally look pretty good any way, as Durk & Sandy did at the time. These two simply did not have enough of a baseline circa 1980 to show that they had come up with effective hacks into their aging process. And if you can find recent photographs of them in their early 70's, you can see that they still haven't figured out what to do about their aging.

And three, why all the focus on this century for people who aspire to live a lot longer than normal? Why not think about things you would like to see or do in, say, the 24th Century, as Thomas Donaldson wrote about years ago?

References:

http://www.alcor.org/Library/html/24thcenturymedicine.html

http://www.scribd.com/doc/59655111/History-to-3400-AD

BTW, extra credit for finding the math error in the second article.

Comment author: ChristianKl 23 July 2014 10:18:08AM 5 points [-]

If you look at the number 2045 you will find that it comes from a roadmap of a Russian billionaire. Making roadmaps can be useful because the can guide action. Especially if a billionaire wants to use his funds in a way that keeps him alive.

Two, you can't tell if a longevity breakthrough has occurred any faster than the rate at which humans happen to live.

That's false. The number 2045 comes from a plan to be able to upload humans completely by that point and not be subject to biological concerns anymore.

And three, why all the focus on this century for people who aspire to live a lot longer than normal?

If we don't get things right in this century we won't live in the next. We do have to focus on this century if we want to experience the next.

It doesn't make much sense to ask why questions in cases like this without seeing the context in which people make their statements.

Comment author: gjm 21 July 2014 11:22:50PM 5 points [-]

extra credit for finding the math error in the second article.

Well, near the start it refers to "an exponential growth of 3 per cent per year, or multiplying by about 10 every 100 years" when in fact 1.03^100 is about 19. At which point I have little confidence that that's the mathematical error; it suggests a level of sloppiness likely to produce others.

Comment author: [deleted] 22 July 2014 07:21:08PM 2 points [-]

<not serious>Clearly the 3% and 10 figures are given to within one significant digit each. 1.026^100 = 13.02</not serious>

Comment author: NancyLebovitz 23 July 2014 02:52:38PM 2 points [-]

Two, you can't tell if a longevity breakthrough has occurred any faster than the rate at which humans happen to live. You would need institutions with the resources to collect data on the experimental groups and conduct longitudinal studies over many decades to see if they live a lot longer than the untreated control group of natural human populations. I don't know of anyone who has proposed doing that.

That's not likely to be true. If people are aging a lot more slowly, you should be able to see the effects in ten years, maybe less. It's hard for me to imagine a method which would lead to much better markers for aging that left people with the same lifespans.

Comment author: DanielLC 21 July 2014 06:34:36PM 2 points [-]

Why do transhumanists keep setting arbitrary (and frankly nonsensical) "immortality" dates in this century, like 2045?

I'd say it's that people like numbers. As a result, a lot of people pull out arbitrary numbers of much higher precision than is reasonable.

And three, why all the focus on this century for people who aspire to live a lot longer than normal?

I don't think there's much point in focusing on that stuff other than entertainment. I guess people think it's more fun to think about how things will improve in a century or so than to try to work out what completely alien world will exist in the distant future.

If you do think it will be useful, then you know more about the near future, so you can think about it more productively, you have more time to think about the distant future and you can procrastinate, and thinking about the near future will pay off sooner, so it will better compete with investing.

Comment author: gwern 24 July 2014 07:14:54PM 1 point [-]

Two, you can't tell if a longevity breakthrough has occurred any faster than the rate at which humans happen to live.

What do you think of the recent aging clock work by Horvath?

Comment author: bbleeker 22 July 2014 04:53:26PM *  0 points [-]

One, these dates fall within the life expectancies of people alive in 2014.

That is why. On January 1, 2045, I'll be 90 years old, if I make it that far. So if a cure for mortality has been invented and made widely available by then, I could just get to use it. If it's invented in 2060, who cares? I'll be dead.

Comment author: JoshuaZ 23 July 2014 07:44:08PM 2 points [-]