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As we go on with our everyday lives, it’s very easy to forget about the sheer size of the universe.

The Earth may seem like a mighty place, but it’s practically a grain within a grain of sand in a universe that is estimated to contain over 200 billion galaxies. That’s something to think about the next time you take life too seriously.

So when we gaze up into the starry night sky, we have every reason to be awestruck—and overwhelmed with curiosity. With the sheer size of the universe and the number of galaxies, stars, and planets in it, surely there are other sentient beings out there. But how come we haven’t heard from them?

Almost 99% of all human ancestors may have been wiped out around 930,000 years ago, a new paper has claimed.

The new research, published in the journal Science, used DNA from living people to suggest that humans went through a bottleneck, an event where populations shrink drastically. The paper estimates that as few as 1,300 humans were left for a period of around 120,000 years.

While the exact causes aren’t certain, the near-extinction has been blamed on Africa’s climate getting much colder and drier.

New Atlas robot from Boston Dynamics and Figure 1 from OpenAI, leaked $100b OpenAI plan and a new project to avoid our extinction.
Sam Altman, Elon Musk, Geoffrey Hinton, Sora.

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We often look out into the galaxy and wonder where all the civilizations are, but could it be that we don’t see them because they have all chosen to exist in fortress star systems, surrounded by despoiled deserts of their own making?

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Credits:
The Fermi Paradox: Interdiction.
Episode 446; May 9, 2024
Produced \& Narrated by: Isaac Arthur.
Written by: Isaac Arthur \& Mark Warburton.

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