Build a world small enough to circle in a day—or vast enough to house a galaxy. This grand tour explores the strangest space habitats possible under known physics.
We've been running SFIA episode polls on YouTube for years, but that means we're mostly hearing from one part of the community. Starting with this poll, I'm going to begin posting them here on Reddit, Discord, and elsewhere too, with new artwork for every option.
Vote for whichever topic you'd most like to see become a full SFIA episode. I'm also curious whether different parts of the SFIA community end up choosing differently.
Curious what each episode would actually cover?
The Hubble Tension: Is Our Universe Expanding Wrong?
Different methods of measuring the Universe's expansion rate produce conflicting answers. Is there an unnoticed error, or could the disagreement reveal physics beyond our current models?
Is Spacetime Made of Something?
Space and time may not be the deepest layer of reality. Could spacetime emerge from quantum information, entanglement, or some more fundamental structure?
What Is the Shape of the Universe?
Is the cosmos infinite, curved, flat, or connected back upon itself? Could traveling far enough in one direction eventually return you to where you began?
Why Does Matter Exist?
The early Universe should have produced matter and antimatter in nearly equal amounts. Why did enough matter survive to form galaxies, stars, planets, and us?
This is the first time we're trying the new poll format here, so feedback on the artwork, readability, and presentation is very welcome too.
Aboard a relativistic starship, time is cargo: gamma-10 cruise, decades slipping by outside, lethal dust grains, beam routes, antimatter, ramjets, and the strange culture of crews who trade history for the stars.
Are we living in a simulation, or are we becoming the simulators? From AI worlds to digital immortality and the Fermi Paradox, we explore reality’s weirdest possibility.
The First Martian Cities: Planning Habitats
Mars won’t get cities because it becomes easy to live there. It gets cities because people stay. We explore how the first fragile outposts become homes, economies, neighborhoods, and civilization.
Could life survive in oceans that eat glass and treat water as poison? Explore fluorine-rich biology, hydrogen fluoride seas, and alien creatures whose metabolisms resemble carefully contained rocket engines.
https://youtu.be/RTH2b5XKCLo