Sure, and I'm going to. No freezing required! 

I sincerely doubt that increase in age will equate to increase in fertility. A woman is born with a certain amount of eggs in her ovaries and these will run out no matter how long she lives. Fertility in men goes down with time as well. Similarly, there is nothing to suggest that people who live together for 50 years will not live together for 150 years. Those who don't have such long partnerships already have multiple wives and/or husbands and already have multiple families BUT only within the times of their fertility. As to multiple careers? Already happened a couple of decades ago.
People who live to be hundreds of years old would not behave like we do with our 50 years of good health. There would be large cultural changes, to the way we educate, the way we work, the way we interact with our families and friends.
Something to read.
Not to mention the changes in our tax brackets ... and how old would I have to be before I can draw social security?
Not to mention the changes in our tax brackets ... and how old would I have to be before I can draw social security?
Is this even a serious argument? Are you really more concerned about getting a social security check than you are about aging prematurely? Because that's what we're talking about here: not just increasing our maximum life-span but extending our years of health and virility as well.
Count me as another who does not necessarily want to live forever, but would like to live a heck of a lot longer than what is currently the expected human lifespan. Besides, I don't get bored easily, so I suspect I could live a thousand years without running out of interesting new things to do and learn.
Having said that, imagine how much human progress would slow down if everyone lived much longer. If the regular human life expectancy were two hundred years, then many people alive today would have been born and raised when slavery was legal and socially acceptable. Since many people tend to hold onto their original beliefs with an iron fist, it is safe to assume that many of those people would still think slavery is right, and would be trying to teach that to their descendants.
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