Michael Rae, 50, a science writer at the foundation, explains: “The Big Kahuna is when we get to the point that your life expectancy is no longer a function of your age.
“Right now, every year you live, you’re closer to your doom. Once you take away ageing, it becomes open-ended. That doesn’t mean you’re immortal – you can still be murdered or hit by a catastrophic infection like Ebola, or die in a plane crash.
“But you are no longer going to be more vulnerable to disease and death.
“At that point, if you do the maths on how unlikely it is to die, it gives a life expectancy of about 1,000 years.
“You can still die the next day, or live to 2,000 years. It becomes about what happens in your life.”