Tech billionaires trying to live for ever? That’s a waste of time, says physicist
Summary
A physicist, Jim Al-Khalili, says that trying to live forever is a waste of time. He explains that time is complex, runs differently depending on speed and gravity, and that it is better to make the most of the time we have now.Key Facts
- Some tech billionaires try extreme methods like injecting plasma from young people to extend life.
- Jim Al-Khalili will present Royal Institution Christmas lectures about the nature of time.
- Time is not the same for everyone; moving fast or being near strong gravity changes how time passes.
- Albert Einstein showed that past, present, and future can all exist together.
- We only experience the present moment, which is why time feels separate to us.
- Time travel is mathematically possible in relativity but would require space-time to be warped like a rollercoaster loop.
- Al-Khalili thinks it is more important to enjoy our current time than to spend life trying to extend it endlessly.
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