Maybe yes, maybe no? I mean, presuming the limitation that you can't travel faster than light and you have beings with highly advanced technology somewhere "ne

Maybe yes, maybe no? I mean, presuming the limitation that you can't travel faster than light and you have beings with highly advanced technology somewhere "near" as in < 100 light years away, it would be possible they decided to send an expedition our way sometime ago and they're hanging around somewhere in the solar system. They could have tech that makes this less of a inconvenience than it would be for us. If for example if they had some way of hibernating the interstellar travel time, but any sort of help from the home planet would still be decades away, staying put, observing and limited contact would be a possible kind of behavior one might choose. They would be technologically advanced, but still lack the numbers for any kind of "safe" interaction with us from their point of view.