Human beings have wondered what it would be like to live forever, pretty much since we came down from the trees. And great minds from earlier ages (along with many crackpots) have explored the possibility of extending life well beyond its usual boundaries.
Now the advances in both medical science and computers make some people wonder if it really IS possible to live forever, in some form.
Chip Walter, a longtime science journalist, talked to people who are putting money and brainpower into extending life. The result is the book Immortality, Inc.: Renegade Science, Silicon Valley Billions, and the Quest to Live Forever.
Are we getting close? Listen to our interview from 2020 and decide for yourself.