Redshifted civilizations, galactic empires, and the Fermi paradox
a day ago
- #general relativity
- #interstellar travel
- #Fermi paradox
- Explores how civilizations could overcome interstellar travel constraints using time dilation within classical general relativity.
- Proposes biologically tolerable orbits near the photon radius of Sgr A* for civilizations below Type II threshold.
- Suggests a single Type II civilization could establish a galaxy-spanning civilization with significant time dilation.
- Identifies downward frequency drift in isotropic monochromatic signals from orbits near a black hole's photon radius.
- Links vulnerability of ultrarelativistic vessels and adversarial civilizations to the 'dark forest' hypothesis.