Mr Saffo, from San Francisco, says in the future people will be able to grow their own replacement organs, take specially tailored drugs, and use genetic research tools to alert them from any possible hereditary health dangers.

He adds that tomorrow’s world will be a fusion of biology and technology, where robots do the chores, cars drive themselves and artificial limbs are better than real ones.

Mr Saffo’s comments reflect claims by American scientist Ray Kurzweil who only a few months ago said immortality was only 20 years away due to the speed of advancements in nanotechnology.

But Mr Saffo says these improvements would only be affordable to the super-rich. And because of this, he says, advancements may lead to a divide between the classes and eventually could lead to the super-rich evolving into a different species entirely, leaving his not-so-rich counterpart behind.

Seen at The Telegraph