Let’s zoom out a bit. At the scale of humankind as a species/ the collective population and not the individual, we evolve through generations. We live on through generations, through our disciples and our children.

I believe the only way to achieve immortality is through evolution of our species, and through the knowledge we are able to pass down. Have you traveled outside at all lately? The alarming rate at which we are destroying our environment for quick profit is growing exponentially. We are pumping toxic and cancerous chemicals underground, contaminating sources of fresh drinking water throughout the country; we are poisoning the food we eat.

The first definition of “Aging” in my dictionary is “the process of growing old.” The second is: “The process of change in the properties of a material occurring over a period, either spontaneously or through deliberate action.” If we look at our cumulative impacts and influences as a species, we are degrading the environments in which we are living– environments that determine what air we breathe and water we drink– how healthy we are, and thus, how long we (individually) will live. If we continue on this path, we will indefinitely alter the properties of our natural environment– contaminated with toxins that will far outlive any of us.

Your time would be much better spent investigating how to sustain our natural environment, before it can no longer sustain human life on this planet as we know it.

Firstly, the medical technologies that enable this extended life-span will likely be expensive at first. This will lead to a technology gap between those who can afford the “rejuvenation services”, and those who cannot (as mentioned by an earlier poster). Here’s the rub, though: With the wealthy able to live longer, they’ll have to work longer (indefinitely in some cases) to support themselves. This will further stratify economies and resources.

In the long-run, these rejuvenation services won’t ever be able to account for or prevent traumatic causes of death. How will we insure health and life policies if there is a 100% chance that everyone will die of completely random accidents (or via murder or suicide), making it near impossible to use actuarial distributions?

Finally, and a bit more abstractly, what if there are biological “states” that the SENS theory does or can not account for? Complex systems, such as reproductive lifeforms, tend to be ergodic…but some of the possible, but very improbable, states are unknowable with small (or short time-frame) samples. In other words, there may be ways for cells to “age” or “die” that are only knowable in ultra-extreme lifespan scenarios. I wouldn’t be surprised if, despite the best efforts of lifespan researchers, life eventually finds a way to extinguish itself and return our natural resources (the atoms of which we are composed) to the larger ecosystem of the earth.

Another problem is population. Our world is being overpopulation by people and is slowly on the brink that it cannot sustain the people currently living. If this immorality was given, our resources around the world will limited and people would fight another one to control that particular resource like precious metals, oil and such.

As you can see, there are problems dealing with extending our lives. Personal feelings can conflict with the ideal of the concept. Overpopulation is something that needs to be solve not worsen. However, I do agree there are some potential benefits from living longer but I do not see it at the moment. Living longer may seem like a good idea at first but is it worth it to lose your friends and families and having your future generations to live in an overpopulated world?

Another argument I hear of a lot is that life is a gift and if we live for too long we’ll start wasting our lives away. Lets all be honest with ourselves, how often how we layed awake in life and thought about how short life is and how much we had more time. And I don’t know about the rest of you but thats never occurred in my mind. The only people that could talk like their life is measured in days would be those dying of serious disease, and I’m sure they would all tell you they wish they could live longer.