Come to think of it, wouldn’t they look a lot like black holes?
Not really. The black hole might have hawking radiation it should also gravitationally lens the surroundings more than a dyson sphere.
It might also have an accretion disc.
Come to think of it, wouldn’t they look a lot like black holes?
Not really. The black hole might have hawking radiation it should also gravitationally lens the surroundings more than a dyson sphere.
It might also have an accretion disc.