Some commentary: Would a dyson sphere really appear "dark" and only be visible in infrared? Wouldn't a civilization manipulating a dyson sphere still want to be able to see what they're doing outside of the sphere? Wouldn't they have tons of light pollution from their advanced civilization existing around their dyson sphere? Unless they've somehow evolved past the need to see things, it seems like a dyson sphere is an unlikely explanation for these 7 stars
How much light would individual ships need?
Do you expect light sources of living beings near the star would need to shine at stellar brightness to see?
Why would you expect (an advanced civilization) would need enough light near that star- to be visible outside of the solar system?
Additionally, their work light outside of their sphere (assuming they wanted to go outside of the sphere), would be directional.
It would need to be immensely bright to reflect or pointed directly at us.
We don't know what they are, a lack of other additional light is odd. I want to know more about them.
https://www.youtube.com/watch?v=ZSnA2FdDYfk
skip to 5:51
Some commentary: Would a dyson sphere really appear "dark" and only be visible in infrared? Wouldn't a civilization manipulating a dyson sphere still want to be able to see what they're doing outside of the sphere? Wouldn't they have tons of light pollution from their advanced civilization existing around their dyson sphere? Unless they've somehow evolved past the need to see things, it seems like a dyson sphere is an unlikely explanation for these 7 stars
We don't know if extraterrestrial life would need light to see. Using sonar and producers that get energy from volcanic vents is 100% possible.
That's true, space could be ruled by giant bats
How much light would individual ships need? Do you expect light sources of living beings near the star would need to shine at stellar brightness to see?
Why would you expect (an advanced civilization) would need enough light near that star- to be visible outside of the solar system?
Additionally, their work light outside of their sphere (assuming they wanted to go outside of the sphere), would be directional.
It would need to be immensely bright to reflect or pointed directly at us.
We don't know what they are, a lack of other additional light is odd. I want to know more about them.