Once upon a time people were convinced the Earth was flat. Go to the edge and you fall off.

Had they kept to this belief - everything we know would not be.

It is in our nature to explore and expand. Space is a frontier calling us that we continue to learn about. I think you're mistaken here - we ARE a space-faring civilization and I have no doubt we're not alone in that.

But I appreciate the food your provide for thought.