In time, I'm sure we'll cure the ancient malady of death.
But not anytime soon. I'd give it maybe......300 years if we really work on it. Maybe make it 1000, to account for wars and protests against screwing with <deity's> divine gift of death.
Cells keep decaying, and even if you have spare cloned organs, there's still the matter of continuing degradation of your brain. Options:
- Somehow stop the degradation, effectively ending the aging process for cells. Maybe make a backup copy of your DNA at birth, and somehow infuse it into the body, and have it replace the older DNA later in life? Nanotechnology, maybe?
- Move the mind into an artificial storage medium. That would take a long time though; we'd need good quantum computing technology to make that feasible.