Bryan Johnson

So you want to live forever? Excellent. You’ve come to the right place. Here at Gilgamesh-Makropulos Limited, we know a thing or two about immortality. First, we need to track your metrics: biological age versus chronological age, average number of erections per night, metabolic health, maximal oxygen consumption, heart rate variability, stool volume and colour and salivary flow rate. Sound good? My assistant will fetch the paperwork.  This might seem like the beginning of a potboiler sci-fi rip-off. But it’s actually closer to our reality than Bernard Williams would have liked. While we still haven’t achieved immortality, the cult of ‘longevity’ has become something of a gold rush in recent years.

In fifth grade my class read Tuck Everlasting, by Natalie Babbitt, the story of a ten- year-old girl who stumbles on a family of immortals, the Tucks, who impress upon her that eternal life is unnatural and actually a curse. The novel had a profound effect on me. I became obsessed with the book and with the relationship of life to death. One passage in particular has haunted me for decades. “You can’t have living without dying. So you can’t call it living, what we got,” the patriarch, Angus Tuck, says. “We just are, we just be, like rocks beside the road.” I’ve been thinking about this book a lot since I became aware of the tech entrepreneur Bryan Johnson.