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How Far Beyond Earth Could Humanity Spread?

Season 9 Episode 10 | 15m 57s

Future generations may one day explore the cosmos and even settle entire other galaxies. But there is a hard limit to how much of the universe we can expand into. So, how big can humanity get?

Aired: 04/11/23
Extras
We only recently figured out where cosmic rays are coming from.
Black hole complementarity may force us to rethink what it means to say that it exists.
To travel the stars without faster than light travel we’re going to need a generation ship.
Today we are jumping into a black hole. Again.
The Moon: humanity’s first destination beyond our atmosphere.
So how did humans figure out the solar system? Eclipses!
Is gravity just an emergent effect of entropy?
Is our 3-D universe is just the inward projection of an infinitely distant boundary?
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
So what exactly is an EMP, and how dangerous are they?
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We only recently figured out where cosmic rays are coming from.
Black hole complementarity may force us to rethink what it means to say that it exists.
To travel the stars without faster than light travel we’re going to need a generation ship.
Today we are jumping into a black hole. Again.
The Moon: humanity’s first destination beyond our atmosphere.
So how did humans figure out the solar system? Eclipses!
Is gravity just an emergent effect of entropy?
Is our 3-D universe is just the inward projection of an infinitely distant boundary?
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
So what exactly is an EMP, and how dangerous are they?