Tech billionaires trying to live forever are wasting their time, according to leading physicist Jim Al-Khalili. The professor, who will deliver this year's Royal Institution Christmas lectures on time, argues that the ultra-rich's obsession with immortality may actually prevent them from enjoying the present. While figures like Bryan Johnson experiment with extreme anti-aging treatments, Al-Khalili suggests a different approach: embracing our finite existence.
The Billionaire Quest for Immortality
Some of the world's wealthiest individuals are pouring millions into longevity research and experimental treatments. Bryan Johnson, a tech CEO, famously tried injecting plasma from his 17-year-old son, though he later admitted seeing no benefit. Others turn to unregulated peptide injections, cold plunges, and supplement cocktails in hopes of defying aging. But according to Al-Khalili, these efforts may be misguided.
A Physicist's Perspective on Time
Al-Khalili has long been fascinated by time. As a child, he was puzzled when his engineer father said no one truly understands what time is. "We have a finite interval of time in which we exist in the universe," he says. "The more I study the nature of time, the more I realise that I just want to make the most of the time that I have." He compares our existence to a blink of an eye relative to the age of the universe, questioning whether extending that blink is worthwhile.
Why Longevity Obsession May Miss the Point
Focusing solely on extending life could mean missing out on the here and now. Al-Khalili suggests that spending our limited time trying to extend it may not be a fulfilling use of our existence. Instead, he advocates for appreciating the present and making meaningful connections.
| Approach | Examples | Criticism |
|---|---|---|
| Extreme longevity interventions | Plasma injections, cold plunges, peptides | Unproven, may waste time and resources |
| Mindful living | Focus on present, meaningful experiences | Al-Khalili's preferred approach |
- Finite time is a fundamental aspect of human existence.
- Billionaires' attempts to achieve immortality may be futile.
- Focusing on the present can lead to a more fulfilling life.
- Scientific understanding of time challenges the pursuit of eternal life.
FAQ
Who is Jim Al-Khalili?
Jim Al-Khalili is a renowned physicist and professor known for his work on time and quantum mechanics. He will give this year's Royal Institution Christmas lectures on the topic of time.

Why does Al-Khalili think trying to live forever is a waste of time?
He believes that our time is finite and that spending it trying to extend life may prevent us from making the most of the present. He questions whether extending our existence is worthwhile compared to living fully now.
What are some extreme longevity treatments billionaires use?
Some tech billionaires use unregulated peptide injections, cold plunges, supplements, and even plasma injections from younger individuals. Bryan Johnson notably tried plasma from his 17-year-old son.
Ultimately, Al-Khalili's message is clear: rather than chasing immortality, we should cherish the time we have. As he puts it, "We're here for a blink of an eye compared with the age of the universe. If I spend that blink trying to extend it to two blinks, I'm not sure that is actually a worthwhile thing to be spending my life doing."