The qualificatiom I made in my question was to ask what the effect eould be on us if there was no two way exchange of information. We see them, they're far away

The qualificatiom I made in my question was to ask what the effect eould be on us if there was no two way exchange of information. We see them, they're far away, they are unaware of us or don't care. I see this as the most likely alien discovery scenario, because so far we haven't seen any, so they are probably pretty far away.