We have only explored a tiny fraction of what our solar system consists of. I think it's a bit premature to rule out life outside of our planet, here in our own system.

Please take no offence but how would anyone know what some (supposed) advance civilization is capable of? We've had some technology for...100 years or so? they could have been at it for millions!!!

We're all stuck in our little bubble, sending out tiny "feelers". IMO we know very little, even when it comes to our home.

"It's a basic function of our universe to become aware of itself."~ Neil deGrasse Tyson