50 years from now, Humans will be able to replace their bodies- Transhumanist writers.

Transhumanists are people who believe that humans could use technology to artificially change their body's capabilities.

Natasha Vita-more is a Executive director of Humanity+, formerly World Transhumanist Association,and is one of the coauthors of the 1998 Transhumanist declaration.

She says:
"50 years from now I think we'll be looking at alternative bodies and we can see that really growing in the field of prosthetics. It is essential our memories be stored some place. Currently,our memories are stored in our brains and that's vulnerable. We have hackers all the time and those are called viruses and disease"

Transhumans  believe that humans lifespans can be radically extended, ageing can be reversed and death from disease can be abolished.