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r/IsaacArthur is a subreddit with 33k members. Its distinguishing qualities are that the community is large in size.
The official Subreddit for the Isaac Arthur YouTube channel. This Sub focuses on discussing his videos and exploring concepts in science with an emphasis on futurism, space exploration, along with a healthy dose of science fiction.
Popular Themes in r/IsaacArthur
#1
Ideas
: "POV: u have a problem, but u are a type 1 civilization"
10 posts
#2
Advice Requests
: "Can someone enlighten me on whether the idea of building an orbital ring on earth and then lifting it to orbit and lowering it back to the surface using the inner ring's momentum inherently flawed/unrealistic? And if not, why this idea isn't often seen when the orbital rings are brought up?"
4 posts
#3
Pain & Anger
: "The Antarctica Problem - the issue with space colonization I rarely see brought up."
3 posts
#4
Solution Requests
: "A couple of pet peeves - looking for alternatives."
1 post
#5
Money Talk
: "Moon could be a $1 trillion treasure trove of precious metals: A lunar gold rush may be on the horizon as a study suggests asteroid collisions have scattered platinum and minerals."
1 post
#6
Opportunities
: "Looking for good reasons to attack my planetary neighbor."
1 post
#7
News
: "CRISPR used to remove extra chromosomes in Down syndrome and restore cell function"
1 post
Popular Topics in r/IsaacArthur
#1
Space
: "The Antarctica Problem - the issue with Space colonization I rarely see brought up."
36 posts
#2
Future
: "China Reveals Plans To Build Giant Power Station In Earth's Orbit -- The energy collected in 1 year would be equivalent to the total amount of oil that can be extracted from the Earth."
18 posts
#3
Interstellar
: "Cutaway of an Interstellar Arkships from Exodus game"
12 posts
#4
Civilization
: "Good News! Humanity was briefly a type 1 Civilization!!"
9 posts
#5
Technology
: "NanoTechnology: The Future of Everything"
9 posts
#6
Mars
: "What do you think about surviving Mars?"
5 posts
#7
Art
: "Jupiter - Bringer of Jollity, Art by me, 2022"
5 posts
#8
Ai
: "Many top Ai researchers are in a cult that's trying to build a machine god to take over the world... I wish I was joking"
5 posts
#9
Energy
: "NASA autonomous solar Energy laser junk cleaner in Earth orbit. [OC, 3D, 2025]"
5 posts
#10
Gravity
: "Different Spin Gravity megastructures in sci-fi"
4 posts
Member Growth in r/IsaacArthur
Yearly
+5k members(17.6%)
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