I also have to say this:
Artificial lights won't work in a vacuum. You can experiment this yourself with a flashlight, a vacuum cleaner and a clear tube.
A benign species that can travel the galaxy WILL know this. So the question arises : If artificial lights can't work in space, why would you put headlights on your spaceship?
If you were a benign species travelling the galaxy, would you REALLY automatically draw attention to yourself / announce your presence on an unsuspecting planet of inhabitants by having headlights on your ship?
I would think no.
Also, if you could travel the galaxy, why go to small planets on the inside orbits of local suns? WE aren't looking at small planets. What would be the purpose of travelling the galaxy = resources. So, what would a very small, inside orbit planet provide for resources that a much, much larger planet wouldn't?
Just doesn't make sense and it's extremely arrogant given the vastness of our galaxy alone, that aliens would come here to see us. I know we require answers for the ancient past, but aliens is just a lazy excuse for accepting current scientific process - which may or may not even be correct ( ie carbon / nuclear dating ) - and our arrogance that ancient people were just too stupid to build these structures.
I also have to say this:
Artificial lights won't work in a vacuum. You can experiment this yourself with a flashlight, a vacuum cleaner and a clear tube.
A benign species that can travel the galaxy WILL know this. So the question arises : If artificial lights can't work in space, why would you put headlights on your spaceship?
If you were a benign species travelling the galaxy, would you REALLY automatically draw attention to yourself / announce your presence on an unsuspecting planet of inhabitants by having headlights on your ship?
I would think no.
Also, if you could travel the galaxy, why go to small planets on the inside orbits of local suns? WE aren't looking at small planets. What would be the purpose of travelling the galaxy = resources. So, what would a very small, inside orbit planet provide for resources that a much, much larger planet wouldn't?
Just doesn't make sense and it's extremely arrogant given the vastness of our galaxy alone, that aliens would come here to see us. I know we require answers for the ancient past, but aliens is just a lazy excuse for accepting current scientific process - which may or may not even be correct ( ie carbon / nuclear dating ).