New study finds potential alien mega-structures known as 'dyson spheres'

Old Arthur C Clark used to think that Dyson spheres were possible. I’m not sure that the study found one, but they sure thought they did. On the other hand if somebody actually built a Dyson sphere how in the world would they communicate with us?

Dyson Spears surrounds a star and takes all of the radiation energy from it in order to power that technology. I have no clue how you would do that. And if you could do that, I’m pretty sure you’re not interested in my car even if it’s an electric one.