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alive
24 posts
Space Exploration & Colonization
16 posts
Astronomical Waste
Astronomy
Astrobiology
Boltzmann's brains
138
All Possible Views About Humanity's Future Are Wild
HoldenKarnofsky
1y
40
11
Perfect Enemy
Alex Beyman
2mo
0
6
Steer the Sun?
Shay
7mo
7
38
Claims & Assumptions made in Eternity in Six Hours
Ruby
3y
7
30
Quantifying anthropic effects on the Fermi paradox
Lanrian
3y
5
28
Space colonization: what can we definitely do and how do we know that?
Ruby
3y
6
22
So You Want to Colonize The Universe Part 5: The Actual Design
Diffractor
3y
4
21
So You Want To Colonize The Universe Part 3: Dust
Diffractor
3y
9
19
So You Want to Colonize the Universe Part 2: Deep Time Engineering
Diffractor
3y
6
15
Which parts of the paper Eternity in Six Hours are iffy?
Ruby
3y
9
15
Decelerating: laser vs gun vs rocket
Stuart_Armstrong
3y
16
14
So You Want to Colonize The Universe Part 4: Velocity Changes and Energy
Diffractor
3y
9
4
The Anti-Carter Basilisk
Jon Gilbert
1y
0
7
Is it definitely the case that we can colonize Mars if we really wanted to? Is it reasonable to believe that this is technically feasible for a reasonably advanced civilization?
Ruby
3y
0
86
Snyder-Beattie, Sandberg, Drexler & Bonsall (2020): The Timing of Evolutionary Transitions Suggests Intelligent Life Is Rare
Kaj_Sotala
2y
20
137
Beyond Astronomical Waste
Wei_Dai
4y
41
7
A terrifying variant of Boltzmann's brains problem
Zeruel017
6mo
12
13
How likely is our view of the cosmos?
Yitz
1y
3
28
So You Want to Colonize The Universe
Diffractor
3y
18
65
Is the potential astronomical waste in our universe too small to care about?
Wei_Dai
8y
17
43
Astronomy, Astrobiology, & The Fermi Paradox I: Introductions, and Space & Time
CellBioGuy
7y
22
55
To reduce astronomical waste: take your time, then go very fast
Stuart_Armstrong
9y
50
42
A Proposed Adjustment to the Astronomical Waste Argument
Nick_Beckstead
9y
38
24
Astronomy, space exploration and the Great Filter
JoshuaZ
7y
68
18
Astrobiology III: Why Earth?
CellBioGuy
6y
12
6
Types of Boltzmann Brains
avturchin
3y
0
11
Astrobiology IV: Photosynthesis and energy
CellBioGuy
6y
8
8
[LINK] Updating Drake's Equation with values from modern astronomy
DanArmak
6y
3