@isaac-arthur.bsky.social
📤 601
📥 11
📝 136
Interstellar Relays - Moving Signals and Spaceships Between the Stars
youtu.be/SxuQ0iadK_w
How interstellar relays could move data, cargo, and starships between stars using lasers, light sails, and cosmic-scale infrastructure.
loading . . .
Interstellar Relays - Moving Signals and Spaceships Between the Stars
YouTube video by Isaac Arthur
https://youtu.be/SxuQ0iadK_w
3 days ago
0
4
1
Alien Mathematics
youtu.be/IL9IKZ1c8k4
Is math truly universal—or just human? Explore how alien minds might think, count, and reason in ways we don’t recognize as mathematics at all.
loading . . .
Alien Mathematics
YouTube video by Isaac Arthur
https://youtu.be/IL9IKZ1c8k4
7 days ago
0
5
0
Space Hotels - How Close Are We to Vacationing in Orbit?
youtu.be/HiNOKUf7OTE
How close are we to vacationing in orbit? Space hotels, real costs, and the tipping point where space tourism becomes normal.
loading . . .
Space Hotels - How Close Are We to Vacationing in Orbit?
YouTube video by Isaac Arthur
https://youtu.be/HiNOKUf7OTE
10 days ago
0
4
0
Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space
youtu.be/P5t7Q1jiQzg
Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization.
loading . . .
Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space
YouTube video by Isaac Arthur
https://youtu.be/P5t7Q1jiQzg
14 days ago
0
5
0
Deep Space Habitats – Designing Self Sustaining Biomes for Interstellar Journeys
youtu.be/9H9xVRZzunA
How and why would humans live far from stars? Exploring deep-space habitats, artificial suns, and megastructures.
loading . . .
Deep Space Habitats – Designing Self Sustaining Biomes for Interstellar Journeys
YouTube video by Isaac Arthur
https://youtu.be/9H9xVRZzunA
17 days ago
0
3
1
At this year's International Space Development Conference we'll be running around 20 presentation tracks from June 4-7th, and this year I will be co-chairing our new "Interstellar" Track I hope you'll submit an abstract for it or any ISDC topic.
isdc.nss.org/isdc-years/i...
18 days ago
1
4
3
Plasma Based Lifeforms - Could Creatures of Fire and Lightning Exist?
youtu.be/vhgV0H3GVEM
Could life exist as plasma or lightning? Explore plasma-based aliens, fire creatures, and exotic physics beyond chemistry.
loading . . .
Plasma Based Lifeforms - Could Creatures of Fire and Lightning Exist?
YouTube video by Isaac Arthur
https://youtu.be/vhgV0H3GVEM
21 days ago
0
3
0
Does Humanity Need To Be Unified To Survive and Settle Space?
youtu.be/Dj_K-jdHgeg
Must humanity unite to colonize space, or can rivalry and diversity be our greatest strengths among the stars?
loading . . .
Does Humanity Need To Be Unified To Survive and Settle Space?
YouTube video by Isaac Arthur
https://youtu.be/Dj_K-jdHgeg
24 days ago
0
4
0
The Fermi Paradox: Air — Atmospheres as a Great Filter
youtu.be/enBmFYKbUwU
Why is air the rarest and most crucial ingredient for life? We explore how atmospheres form, fail, and filter entire worlds—and how this shapes the Fermi Paradox and the search for alien civilizations.
loading . . .
The Fermi Paradox: Air — Atmospheres as a Great Filter
YouTube video by Isaac Arthur
https://youtu.be/enBmFYKbUwU
28 days ago
0
5
0
Asteroid City States – Living in Mobile Habitats Powered by Resource Extraction
youtu.be/2RZWm1-1U6A
Asteroid mines become mobile city-states. Explore how hollowed asteroids grow into sovereign habitats, economies, and civilizations.
loading . . .
Asteroid City States – Living in Mobile Habitats Powered by Resource Extraction
YouTube video by Isaac Arthur
https://youtu.be/2RZWm1-1U6A
about 1 month ago
0
3
0
Hidden Alien Empires: Shadow Civilizations & Exostellar Realms
youtu.be/IMJ0eXHc6xE
What if alien civilizations exist—but chose to hide? Exploring shadow empires, cosmic silence, and the limits of secrecy in space.
loading . . .
Hidden Alien Empires: Shadow Civilizations & Exostellar Realms
YouTube video by Isaac Arthur
https://youtu.be/IMJ0eXHc6xE
about 1 month ago
0
3
0
How Big Could a Space Habitat Get?
youtu.be/JzZXsQN79Pk
How big could space habitats really get? From O’Neill cylinders to Ringworlds and Topopolises, we explore the true limits of megastructure scale.
loading . . .
How Big Could a Space Habitat Get?
YouTube video by Isaac Arthur
https://youtu.be/JzZXsQN79Pk
about 1 month ago
1
4
1
The Anthropic Principle – Are We Meant to Be Here, or Just Lucky?
youtu.be/xZ-KqmgCTLw
Are we here by design, chance, or selection bias? The Anthropic Principle, fine-tuning, doomsday math, and Boltzmann brains.
loading . . .
The Anthropic Principle – Are We Meant to Be Here, or Just Lucky?
YouTube video by Isaac Arthur
https://youtu.be/xZ-KqmgCTLw
about 1 month ago
0
3
0
Cryogenic Arks – Sleeping Through the Ages
youtu.be/w0Z1CIaVuNc
From frozen habitats to millennia-long journeys, we explore the science behind cryogenic arks and deep-time interstellar travel.
loading . . .
Cryogenic Arks – Sleeping Through the Ages (damaged version)
YouTube video by Isaac Arthur
https://youtu.be/vhGYixi9Rh0
about 1 month ago
0
1
1
Berserker Aliens: The Deadliest Answer to the Fermi Paradox
youtu.be/blQGQCD7MxI
Are Berserker probes hunting advanced life? Exploring the deadliest Fermi Paradox solution.
loading . . .
Berserker Aliens: The Deadliest Answer to the Fermi Paradox
YouTube video by Isaac Arthur
https://youtu.be/blQGQCD7MxI
about 2 months ago
1
6
0
5 Sci-Fi Fantasies That Could Soon Become Reality
youtu.be/nXQxj3nO7hg
Five sci-fi technologies becoming real today, from BCIs to space elevators.
loading . . .
5 Sci-Fi Fantasies That Could Soon Become Reality
YouTube video by Isaac Arthur
https://youtu.be/nXQxj3nO7hg
about 2 months ago
0
9
0
Post Stellar Civilizations - Life After The Last Star Fades
youtu.be/qdnyPtEs1HI
Stars won’t last forever, but civilizations might. Join us as we journey into the post-stellar future, where Dyson remnants, black holes, and exotic physics could sustain life long after the galaxies fade.
loading . . .
Post Stellar Civilizations - Enduring in a Darkening Universe
YouTube video by Isaac Arthur
https://youtu.be/qdnyPtEs1HI
about 2 months ago
0
2
0
The Universe’s Unopened Gifts: Hidden Worlds and the Spirit of Discovery
youtu.be/kqY1LfcWgis
Explore the hidden frontiers of the cosmos — from dark matter and rogue planets to quantum mysteries — and uncover the Universe’s greatest unopened gifts of discovery.
loading . . .
The Universe’s Unopened Gifts: Hidden Worlds and the Spirit of Discovery
YouTube video by Isaac Arthur
https://youtu.be/kqY1LfcWgis
about 2 months ago
0
4
1
Which Stars Could We Live Around? Ranking Every Type of Star
youtu.be/duVP_R5smPQ
From giant O-stars to dim brown dwarfs, we rank every stellar class by how well they could host life, Dyson swarms, and advanced civilizations across cosmic time.
loading . . .
Which Stars Could We Live Around? Ranking Every Type of Star
YouTube video by Isaac Arthur
https://youtu.be/duVP_R5smPQ
2 months ago
0
3
1
The Fermi Paradox & Fossil Fuels
youtu.be/Z4sKKQUZcRE
Does the Universe stay quiet because alien species burn through fossil fuels and collapse?
loading . . .
The Fermi Paradox & Fossil Fuels
YouTube video by Isaac Arthur
https://youtu.be/Z4sKKQUZcRE
2 months ago
0
4
1
Alien Overlords Have Conquered Earth... Now What?
youtu.be/RiZgVgxKZCM
The invasion is over. The aliens won. Now humanity must live under their rule. Explore the aftermath of conquest.
loading . . .
Alien Overlords Have Conquered Earth... Now What?
YouTube video by Isaac Arthur
https://youtu.be/RiZgVgxKZCM
2 months ago
0
2
1
Strange Lifeforms: The Chemistry of Alien Worlds
youtu.be/Tf0AzvDrfE4
Explore the universe’s strangest possible life—boron creatures, sulfur beasts, crystal minds, ammonia swimmers, methane organisms, and more in this deep dive into alien chemistry.
loading . . .
Strange Lifeforms: The Chemistry of Alien Worlds
YouTube video by Isaac Arthur
https://youtu.be/Tf0AzvDrfE4
2 months ago
0
3
0
The Anthropic Principle – Are We Meant to Be Here, or Just Lucky?
youtu.be/Tf0AzvDrfE4
Explore the universe’s strangest possible life—boron creatures, sulfur beasts, crystal minds, ammonia swimmers, methane organisms, and more in this deep dive into alien chemistry.
loading . . .
Strange Lifeforms: The Chemistry of Alien Worlds
YouTube video by Isaac Arthur
https://youtu.be/Tf0AzvDrfE4
2 months ago
0
2
0
Vacuum Decay - Escaping the End of Physics Itself
youtu.be/HMw9D3sOhO0
Discover the science behind vacuum decay, the ultimate cosmic doomsday.
loading . . .
Vacuum Decay - Escaping the End of Physics Itself
YouTube video by Isaac Arthur
https://youtu.be/HMw9D3sOhO0
2 months ago
1
4
2
Bubble Habitats & Zero G Megastructures
youtu.be/Ra1D1AASuD4
Explore the future of living in weightlessness—bubble habitats, floating cities, and zero-gravity megastructures where humanity learns to thrive without up or down.
loading . . .
Bubble Habitats & Zero G Megastructures: Life Floating in an Ocean of Sky
YouTube video by Isaac Arthur
https://youtu.be/Ra1D1AASuD4
2 months ago
0
6
2
The Myth of Mutation: Why Superpowers Don’t Evolve... and What Might
youtu.be/J_W2KLZiaJE
Superpowers make great fiction, but evolution doesn’t work that way. We explore why mutations can’t give us instant abilities—and what real science could create instead.
loading . . .
The Myth of Mutation: Why Superpowers Don’t Evolve... and What Might
YouTube video by Isaac Arthur
https://youtu.be/J_W2KLZiaJE
2 months ago
0
4
1
Surviving the Death of the Sun - Moving Earth or Finding a New Home
youtu.be/1-ojYJqjd_0
Discover how to move worlds and forge new stars.
loading . . .
Surviving the Death of the Sun - Moving Earth or Finding a New Home
YouTube video by Isaac Arthur
https://youtu.be/1-ojYJqjd_0
3 months ago
0
3
2
Developing a Cis-Lunar Economy - Our Road to the Stars
youtu.be/PAzvCn4fch4
Explore the roadmap to building an economy between Earth and the Moon.
loading . . .
Developing a Cis-Lunar Economy
YouTube video by Isaac Arthur
https://youtu.be/PAzvCn4fch4
3 months ago
0
5
1
Beyond Alpha Centauri - Â Exploring Nearby Stars
youtu.be/CXjofVtsvsg
Humanity’s first interstellar missions may reach Alpha Centauri—but what comes next? Explore nearby stars, colony plans, and how we’ll build civilizations beyond our stellar neighbor.
loading . . .
Beyond Alpha Centauri: Exploring Nearby Stars
YouTube video by Isaac Arthur
https://youtu.be/CXjofVtsvsg
3 months ago
0
5
3
Orbital Farms: Humanity’s Next Agricultural Revolution
youtu.be/ylev6rRSubM
Happy Thanksgiving Everyone! As humanity expands into space, we’ll need new ways to grow food. Explore how orbital farms could sustain billions—on Earth, Mars, and beyond.
loading . . .
Orbital Farms
YouTube video by Isaac Arthur
https://youtu.be/ylev6rRSubM
3 months ago
0
6
2
Ark Swarms - Dispersing Humanity Across the Stars to Prevent Extinction
youtu.be/LqO3QqiBkrM
To colonize the Milky Way, humanity must travel in fleets, not alone. Ark Swarms shows how interstellar swarms can secure our future among the stars.
loading . . .
Ark Swarms - Dispersing Humanity Across the Stars to Prevent Extinction
YouTube video by Isaac Arthur
https://youtu.be/LqO3QqiBkrM
3 months ago
0
5
2
The Future of Humanity: What Will We Become?
youtu.be/pMwtrxpqH_Y
From cyborgs to hive minds and civilizations of pure thought, we trace the possible futures of our species through the next trillion tomorrows.
loading . . .
The Future of Humanity - What Will We Become?
YouTube video by Isaac Arthur
https://youtu.be/pMwtrxpqH_Y
3 months ago
0
7
1
Could We Nuke Mars’ Core to Restart Its Spin? | New Insights into the Red Planet’s Heart
youtu.be/OQDQx5Bizr8
Mars once had a magnetic field—can we bring it back? Learn what new seismic data reveals about the Red Planet’s heart and whether nuclear power could restart its spin.
loading . . .
Could We Nuke Mars’ Core to Restart Its Spin? | New Insights into the Red Planet’s Heart
YouTube video by Isaac Arthur
https://youtu.be/OQDQx5Bizr8
3 months ago
0
2
1
Why We Should Go To Mars... And Why We Shouldn't
youtu.be/_19nXFhPF0I
Mars calls to us as the next world to conquer—but should we go yet? Explore the case for and against colonizing the Red Planet, from science to strategy to survival.
loading . . .
Why We Should Go To Mars... And Why We Shouldn't
YouTube video by Isaac Arthur
https://youtu.be/_19nXFhPF0I
3 months ago
1
4
1
The First Interstellar Colony - Our First Home Among the Stars
youtu.be/r1VZVmnIZDg
Before we plant flags on alien worlds, we’ll build homes that can cross the void. This episode explores how humanity’s first interstellar colony might be born inside the ship itself.
loading . . .
The First Interstellar Colony - Humanity’s Leap Beyond Sol
YouTube video by Isaac Arthur
https://youtu.be/r1VZVmnIZDg
3 months ago
0
4
2
Doomsday Devices & Ontological Weaponry: The End of Worlds — and of Reality Itself
youtu.be/DKHjxQYyjIs
From nuclear nightmares to reality-breaking weapons we examine how science and fiction imagine the end of everything. What happens when weapons don’t just destroy worlds but unmake reality itself?
loading . . .
Doomsday Devices & Ontological Weaponry
YouTube video by Isaac Arthur
https://youtu.be/DKHjxQYyjIs
3 months ago
0
2
1
The Space Mining Boom - How Resources Will Shape the Future
youtu.be/0l5Sv54pgYI
From lunar regolith to metal-rich asteroids, this episode examines how off-world resources could spark the largest economic boom in human history — and what the fuel, transport, and political math actually looks like.
loading . . .
The Space Mining Boom - How Resources Will Shape the Future Economy
YouTube video by Isaac Arthur
https://youtu.be/0l5Sv54pgYI
4 months ago
2
5
1
Insectoid Aliens - Hive Minds, Swarms, and Alien Evolution
youtu.be/UOFm4aJIHSw
Forget little green men — the galaxy’s most likely aliens may be hives and swarms. From biology to starships, insectoid life could shape civilizations stranger than ours.
loading . . .
Insectoid Aliens - Hive Minds, Swarms, and Alien Evolution
YouTube video by Isaac Arthur
https://youtu.be/UOFm4aJIHSw
4 months ago
1
3
1
The Fermi Paradox - Cosmic Forbidden Zones
youtu.be/h2teHmbvGR0
From supernova graveyards and magnetar death fields to alien quarantines and simulation boundaries, we map out the “haunted houses” of the Milky Way and ask: are we living in one?
loading . . .
The Fermi Paradox - Forbidden Zones
YouTube video by Isaac Arthur
https://youtu.be/h2teHmbvGR0
4 months ago
0
6
2
Caretaker AI & Genus Loci
youtu.be/YUQdTdfFZT8
Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect?
loading . . .
Caretaker AI & Genus Loci
YouTube video by Isaac Arthur
https://youtu.be/YUQdTdfFZT8
4 months ago
6
4
2
Twilight Imperium: When Galactic Civilizations Ebb
youtu.be/o_AUTrkmWYE
From Asimov’s Foundation to Warhammer 40K and Twilight Imperium, science fiction is filled with collapsing empires. But could civilizational decline really explain why the Universe seems so empty?
loading . . .
Twilight Imperium: When Galactic Civilizations Ebb
YouTube video by Isaac Arthur
https://youtu.be/o_AUTrkmWYE
4 months ago
0
3
1
Abandoned Space Colonies - How Worlds Can Unterraform Themselves
youtu.be/rZgJrLifKws
Colonies won’t always last forever—sometimes planets revert, habitats decay, and entire worlds are left in ruins. Join us as we examine the life cycle of abandoned space settlements.
loading . . .
Abandoned Space Colonies - How Worlds Can Unterraform Themselves
YouTube video by Isaac Arthur
https://youtu.be/rZgJrLifKws
4 months ago
0
4
1
AI Alignment - Can We Make AI Safe?
youtu.be/eKNbu6pRxjM
From safety protocols to philosophy, AI alignment asks a hard question: can we build artificial intelligence that truly serves humanity?
loading . . .
AI Alignment - Can We Make AI Safe?
YouTube video by Isaac Arthur
https://youtu.be/eKNbu6pRxjM
4 months ago
6
7
2
Why Data Centers in Space Could Launch a New Space Economy
youtu.be/iLNrYwx0th0
The future of computing might be off-world. Learn how orbital data centers could power AI, solar energy, and a thriving space industry.
loading . . .
Why Data Centers in Space Could Launch a New Space Economy
YouTube video by Isaac Arthur
https://youtu.be/iLNrYwx0th0
4 months ago
2
2
1
Dyson Spheres and Solar Commerce: The Birth of a Stellar Economy
youtu.be/-FQxpIqciz0
A Dyson Swarm isn’t just power—it’s prosperity. See how humanity could turn a star’s energy into a solar-scale economy of trillions.
loading . . .
The Dyson Sphere Economy - Mega Structures, Mega Markets, and Mega-Wealth
YouTube video by Isaac Arthur
https://youtu.be/-FQxpIqciz0
4 months ago
1
5
1
The Fermi Paradox: How Natural Nuclear Reactors May Have Created Life on Earth
youtu.be/e8Bei1l8vuU
Could the origins of life on Earth trace back to a natural nuclear reactor? Long before humanity split the atom, nature itself may have done it first.
loading . . .
The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life?
YouTube video by Isaac Arthur
https://youtu.be/e8Bei1l8vuU
5 months ago
0
4
3
Solar Flares & Coronal Mass Ejections - Defending Earth from Our Own Star
youtu.be/hWCp4iPkiqU
Solar storms are inevitable; disaster isn’t. Explore the physics of flares and CMEs, historical extremes, and realistic defenses—detection, delay & planet-scale shielding to weather the Sun’s worst days.
loading . . .
Solar Flares & Coronal Mass Ejections - Defending Earth from Our Own Star
YouTube video by Isaac Arthur
https://youtu.be/hWCp4iPkiqU
5 months ago
0
5
2
After Mars - 8 Candidates For Where Humanity Should Go Next
youtu.be/dJG1iTgUuG8
Mars may be humanity’s next great home—but it’s not the finish line. From floating cities above Venus to mining Mercury and the Belt, we explore what might follow Mars and how each could shape our future in space.
loading . . .
After Mars - 8 Candidates For Where Humanity Should Go Next
YouTube video by Isaac Arthur
https://youtu.be/dJG1iTgUuG8
5 months ago
0
3
2
New Dwarf Planet Discovered... A Minor Planet With a Major Future?
youtu.be/GboWwqzAHEo
The discovery of 2017 OF201 reminds us that even small worlds can hold vast potential — not just as frozen orbs, but as stepping stones for interstellar civilization.
loading . . .
New Dwarf Planet Discovered... A Minor Planet With a Major Future?
YouTube video by Isaac Arthur
https://youtu.be/GboWwqzAHEo
5 months ago
0
4
2
Exploring The Multiverse: Infinite Realities, One Grand Mystery
youtu.be/wb3jGT6vob4
The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.
loading . . .
Exploring The Multiverse: Infinite Realities, One Grand Mystery
YouTube video by Isaac Arthur
https://youtu.be/wb3jGT6vob4
5 months ago
0
5
1
Load more
feeds!
log in