Gerontologist Aubrey de Grey, who believes the summers can be endless, sat for an interview with Marty Nomko of Psychology Today. An excerpt:

“Question:

You and those at your foundation and allied scientists believe there’s a 50 percent chance that your proposed strategies for repairing age-related cell damage will come to fruition within 20 to 25 years. What’s your evidence for that?

Aubrey de Grey: 

It’s the same kind of evidence that any pioneering technologist has: We have a concrete idea of what real anti-aging medication would consist of plus detailed knowledge of what technology already exists that constitutes the starting-points for developing that medication. So we have a reasonable sense of how hard it is to get from here to there and thus how long it will probably take.

Question:

That sounds like a blend of evidence and gut feeling.

Aubrey de Grey: 

It’s a different sort of evidence than what basic scientists use to make progress in understanding nature but it’s exactly the way technologists always work in devising new ways to manipulate nature.”