It was a selected example of the products of geriontology with regards to the behaviors of longevity in humans as they approach senescence. It was, therefore, a direct rebuttal of your hypothetical.
I don't see how they rebut the hypothetical in question that you were responding to.
I said:
There's also a general evolutionary issue at work here: If a species has a maximal lifespan of around L, then if there are any ways to get more reproductive fitness at a younger age that create problems sometime around or after L. So, one should expect not just one thing to go wrong as a species ages, but lots of things to go wrong. In fact, this is close to what one sees. If this problem is severe enough, it is possible that there are diseases which will show up in the very elderly that we haven't even noticed yet because the population of such people is just too small.
You then said:
That's a common field of topic for geriatrics-study in general. Topically reproductive fitness tends to drop to zero sometime before the age of sixty in humans. Yet, when health impediments and nutrition are eliminated as problems (1st-world-countries), women still tend to live a few years longer than men. Most conjecture on this has it that women are 'more useful' than men evolutionarily even at older ages: grandmas can care for the little 'uns which lets mom make the food. Etc., etc..
I don't see how this response makes sense. It would be a response if I had been talking about evolution having certain effects post the age of reproduction. But in my comment I was talking about probable maximal age. These are not the same thing. Indeed, you seem to be just trying to argue that they aren't. That doesn't address my statement at all.
It would be a response if I had been talking about evolution having certain effects post the age of reproduction. But in my comment I was talking about probable maximal age.
Evolution has effects past the age of reproduction. Such as determining the probable maximal age of the organism. If there is group fitness to be contributed by an individual organism to the whole even without reproduction involved, then that individual organism's survival is selected for -- even though it itself reproducing isn't. (This is an ancillary to kin-selection.) Average ma...
In a comment on his skeptical post about Ray Kurzweil, he writes,
I wonder how people on Less Wrong would respond to that poll?
Edit: (Tried to) fix formatting and typo in title.