My comments: (some of which i have said is said much more succinctly by others in comments on his/her blog, but i shall not plagerise, please: go look for yourself.)

eternidad has made comments about wishing to be cryogenically frozen so as to hybernate and live forever.

In order for you to live, someone else must die, it is the order of things. Earth can only sustain so many people. Imagine a world where there are no natural resources left, because the food that normally would have sustained a normal population has to feed those that normally would have died, not just the new borns. Humanity would become a virus in the galaxy, spreading unchecked in our need for resources.

Birth contol would be the answer in such a society, are you willing to make someone loose the chance of life through not being born just so you can live for more than your fair share?

we are mortal for a reason, let that be.

 Consider:

Ancient Greek Mythos tells of the goddess Aphrodytie, who fell in love with a mortal. She begged the gods to grant her wish of making her lover immortal, eventually having her wish granted. Now, the gods live in eternal beauty and youth, not just immortality, so after a brief time together, the Lover grew old, while Aphrodytie did not. Ashamed of her lack of foresight, realising that she had asked for immortality for him, forgetting eternal youth to go with it, Aphrodytie hid her old and ugly Lover in a deep dungeon, away from the eyes of gods and men, where he lives trapped forever, ugly, old, frail and alone.

Don't make the same mistake as Aphrodite.

immortality does not equal youth. imagine living in a frail, arthritic body, incontinent and unable to even feed yourself.

 I would suggest you yern for youth as long as possible, before you think about immortality.

This is the time where i point out what being frozen does to human cells...

ever heard of frostbite?

it kills human cells as simply as burning them.

cryogenics is a nice idea for science fiction, but not really plausable in real life.

search deeper, you may be able to come up with a successful idea.

There have been experiments done that prove that the faster you move, the slower time is for those moving.  The closer you get to the speed of light, the slower time is for you.

So, theoretically, of you put a space ship in orbit around the solar system as close to the speed of life as possible, those inside would be in suspended animation untill they slowed down.